NASA’s Voyager 1 Spacecraft Detects Weird “Buzz” Outside Our Solar System

Instruments aboard NASA’s Voyager 1 spacecraft, which nine years ago left the far reaches of our solar system, picked up the faint, monotonous sound of outer space

The probe was first launched in 1977

Scientists exploring the far reaches of our solar system have detected a strange “buzz”.

The instruments aboard NASA’s Voyager 1 spacecraft, which nine years ago left the far reaches of our solar system, picked up the low, monotonous sound.

Experts said this was due to the constant vibrations of small amounts of gas found in the near vacuum of interstellar space.

It represents the background noise present in the vast expanse between star systems, according to a study published this week in the journal Nature Astronomy.

These vibrations, called persistent plasma waves, have been identified at radio frequencies in a narrow bandwidth over a period of three years as Voyager 1 travels through interstellar space.








Traveling has gone further than any other object on Earth
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Picture:

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Stella Koch Ocker, PhD student in astronomy at Cornell University and lead author of the study, said: “The persistent plasma waves we have just discovered are far too weak to actually be heard with the human ear.

“If we could hear it, it would sound like a single stable note, playing constantly but changing very slightly over time.”

The Voyager 1 spacecraft, launched in September 1977, is currently located about 14.1 billion kilometers from Earth, about 152 times the distance between our planet and the sun, and continues to obtain and transmit data.

Having visited the enormous planets Jupiter and Saturn decades ago, Voyager 1 now provides a glimpse into interstellar space.

Voyager 1 has previously detected gas disturbances in interstellar space triggered by occasional flares from our sun.




The new study reveals stable vibrations unrelated to solar activity that could be a constant feature in interstellar space.

This hum has a frequency of about 3 kilohertz (kHz).

“When the oscillations of the plasma are converted into an audio signal, it looks like a varying tone. It’s a bit strange,” said James Cordes, professor of astronomy at Cornell University and co-author of the study.

“Voyager 1 will continue, but its power supply will most likely run out this decade after up to 50 years of service.

“Conceptual designs are underway for future probes aimed at going beyond the Voyager spacecraft.

“This is the message that I find appealing: our reach extends into interstellar space.”


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Learn about new signals found among stars outside the solar system

Outside of our solar system, sound comes from the plasma existing in the interstellar interstellar medium. (Symbolic photo: ESO Twitter)

NASA’s Voyager-1 hears interference from interstellar plasma outside the solar system.

There is no wind in the interstellar region outside of our solar system, but beyond that there is something very interesting for our scientists. Our astronomers are very interested in the gases found in interstellar space, the interstellar medium, the ISM. Recently, NASA’s Voyager-1 vehicle heard the sound of this interstellar medium. Very light noise The Voyager-1 spacecraft has landed in space outside of our solar system. You can always send signals from there. According to this study published in Nature Astronomy, the sound is much lighter, coming from the plasma waves of the interstellar medium captured by the interstellar spacecraft. Stella Coach Ocker, a researcher at Shamley Cornell University, said in the study that the narrow frequency band produces very light and attractive sound. What is happening in this interstellar mediumIn this interstellar medium, ionized, molecular and molecular gases, as well as stellar dust, have a cosmic form. The cosmic form is a combination of high energy molecular centers and protons that move all over space. These radiations, among other substances present in the interstellar medium, are extremely harmful to humans. The role of the heliosphere Our sun protects the universe from radiation by forming a heliosphere outside the solar system. It is a bubble that surrounds the solar system, preventing cosmic rays from entering the solar system, which are made up of charged particles from the sun. But the sun cannot stop them completely.
Hearing the sound of NASA’s Voyager-1 vehicle will prove to be new information for scientists. (Symbolic photo: Shutterstock)

These radiations do not reach the surface of the Earth Cosmic rays also enter the heliosphere. In such a case, the Earth’s magnetic field and atmosphere change the direction of this radiation or make it ineffective. Now Wiser-1 has reached the heliosphere of the Sun. Density in space outside the solar system is increasing, so learn how to get this information In 2012, the solar system was overtaken Voyager 1 now faces the interstellar through the heliosphere. NASA launched Wiser 1 in 1977, which overtook our solar system in 2012. Visor was sent outside the solar system to explore the outer planets of our solar system, if possible.

NASA, Solar system, Voyager 1, hum, interstellar plasma, interstellar medium, heliosphere, cosmic rays,
NASA’s Voyager 1 spacecraft reaches the limit of the solar system’s heliosphere. (Image: NASA / JPL-Caltech)

The sound starts as soon as the heliosphere comes out Voyager 1 has traveled 38 billion kilometers so far, roughly 150 times the distance between our Sun and Earth. It takes 12 hours for the light to reach the earth. Since 2017, plasma waves at a distance of about 23 billion kilometers have echoed continuously. This plasma is a diffusing gas which is found in a particular state between the stars. Find out how Saturn became a weird and shaped magnetic field It’s like a kind of light rain of particles. This is due to the very moderate activity that occurs in the interstellar medium. We do not know what this activity is. This heat is caused by the oscillation of the plasma or the sound of virtual heat caused by the action of electrons in the plasma. However, this finding may reveal plasma concentrations in the interstellar medium.


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Ranking of all items in the planetarium

Every time The Binding of Isaac receives a new DLC, it gains a huge amount of added content for players to discover, and with the release of Repentance, it still does. It’s added a ton of new items, bosses, characters, and achievements to play with and unlock in a truly rogue-lite way, and some of them are more esoteric than others.

RELATED: The Bond of Isaac: Everything You Need To Know About Repentance

A special addition are the new rooms of the Planetarium. These are unlocked by acquiring three different astrology-related items in a single run, such as star sign items or the crystal ball. These rooms contain extremely powerful items based on celestial bodies that can drastically alter a given race, and are yet another thing players need to learn in the game.


11
Venus

The Binding of Isaac Repentance Planetarium Pedestal Venus

Although still very powerful, Venus can be one of the most disappointing Planetarium items a player can encounter. In no way a disappointment, Venus grants Isaac an extra heart container and gives him an aura that charms any enemy who approaches him.

Where Venus may be less useful is that the charm wears off very quickly and some characters like The Lost and ??? cannot benefit from the additional health.

ten
Mercury

The Binding of Isaac Repentance Planetarium Pedestal Mercurius

Speed ​​is one of the most important stats in The Binding of Isaac. It almost makes sense that the planet named after Mercury, the fastest god in the Roman pantheon, grants a very large speed boost.

While the speed boost is generally highly appreciated by players, Mercurius also gives them a permanent effect similar to the Door Stop gem, which keeps all doors open when passed.

9
Saturn

The Binding of Isaac Repentance Planetarium Pedestal Ring of Saturn

The Ringed Planet gets a ring-themed item here in The Binding of Isaac. Upon pickup, a circle will surround the player which activates once Isaac enters a new room. The ring fills with seven tears that orbit the player which can damage enemies and will stick around for a good period of time.

RELATED: 10 Things Loop Hero Is Different From Other Roguelikes

Like similar items such as the Void Maw and the Utensil, Saturnus can be used to deal damage to enemies at odd angles and from a decent distance. This makes the item perfect for fragile characters.

8
March

The Binding of Isaac Repentance Dashing Mars Pedestal Planetarium

Mars is one element that can change the way a player plays the game for the current game, and for that, it’s pretty cool. This item allows Isaac to perform a fast run by pressing the movement key twice or by wiggling the analog stick in the same direction twice in a row.

This dash makes Isaac invulnerable and is more controllable than the dash granted by the Aries item. It is a very useful tool for getting out of sticky situations, as many players will experience the feeling of panic of panicking in a corner surrounded by enemies.

7
Pluto

The Binding of Isaac Repentance Planetarium Pedestal Pluto

Worthy of the tiny rock that was once a planet, Pluto as an object makes Isaac very small. So small, in fact, that enemy projectiles can pass directly overhead, leaving the poor child completely unharmed.

This item also grants a moderate increase in Isaac’s rate of fire. This means he cries more, and it may reflect Pluto’s sad demotion in real life.

6
Jupiter

The Binding of Isaac Repentance Planetarium Pedestal Jupiter Gas Clouds

Jupiter is a … unique piece. Upon pickup, Isaac loses a decent amount of speed and gains two containers of hearts – it seems like fair trade to some. However, Jupiter’s main draw comes from its effect when Isaac remains still.

Players will suddenly experience an assault on their senses when they realize that Jupiter is speeding them up to a stop and er … expel certain accumulated gases which exchange the momentary increase in speed for a passive poison effect. Look, the game was never going to win any awards for its class.

5
Earth

The Binding of Isaac Repentance Planetarium Pedestal Terra rocks

Named after our own planet, Terra replaces Isaac’s Tears with rocks that serve as both an offensive boost and a neat utility upgrade. In combat, these tears deal varying damage that can be up to double Isaac’s damage stat, which with luck can shorten encounters considerably.

RELATED: 14 ​​Best Games To Play If You Love To Kill The Arrow

As a utility item, Isaac’s Tears now destroy obstacles and open closed doors. Whatever bombs can do, her tears can now do for free. He can even use his rocky tears to smash the angel statues needed to collect the key parts to take on Mega Satan!

4
Moon

The Binding of Isaac Repentance Planetarium Pedestal Luna

This item is an interesting passive boon that does not directly affect the player but affects the floors they cross during the game. Luna adds two new secret rooms to each floor and places moonlight beams there that give Isaac a temporary boost to his rate of fire.

This item matches perfectly with I Can See Forever Pills and items that let the player know exactly where secret rooms are, like X-Ray Vision. Veteran players will know and love the power of Secret Rooms and will jump for joy whenever Luna shows up in a planetarium.

3
Ground

The Binding of Isaac Repentance Planetarium Pedestal Sol

Like Luna, Sol is an item that provides Isaac with a bit of mapping utility. Initially, it simply reveals the location of the boss room on the floor, but it has a side effect that is triggered once the boss is defeated. Upon victory, Isaac is completely healed, the rest of the soil is revealed, and he gains a buff for both damage and luck until he moves on to the next stage.

This item is a great incentive to establish a direct line with the boss, and works incredibly well with characters who can rack up a large number of Red Heart containers.

2
Neptune

The Binding of Isaac Repentance Planetarium Pedestal Neptunus

The planet named after the Roman god of the sea is appropriately water themed. When he doesn’t draw tears, Isaac’s mouth will fill with water over time. These will be released in a large throw which can deal a large amount of damage if aimed correctly.

RELATED: The Bond Of Isaac: 10 Of The Most Useful Trinkets

This item is great against enemies who like to hide off the screen for whatever reason, as the player can use this downtime to save tears and release them all at once when the enemy becomes visible again.

1
Uranus

The Binding of Isaac Repentance Planetarium Pedestal Icicles Uranus

Uranus turns Isaac’s tears into ice cubes that slow enemies while they are still alive and freeze them when they die. Added in Repentance, the freeze effect is a very powerful offensive tool that can be used to build up damage quickly.

Frozen enemies can be hit to slide them across the ground and explode in an array of shards, which can damage and freeze other enemies. The potential havoc a player can cause with this item makes it a very attractive choice.

NEXT: The Binding Of Isaac: 10 Most Powerful Elements Added To Repentance


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One of the biggest issues in the game is the stories of women told by men

We no longer need men to hold our hands or deform us.

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Isaac’s Bond: Repentance

The Binding of Isaac: Repentance features a new type of room called the Planetarium, and this guide explains how to unlock and find it.

The Planetarium is a type of room that is featured in Isaac’s Bond: Repentance, and players who want to earn all of the new achievements in the game will need to unlock it. Fortunately, this is not an extremely difficult thing to do, although there is a bit of luck in the process. Providing more details on this process is the exact purpose of this guide, and it will also contain information on how to find the planetarium in Isaac’s Bond: Repentance after being unlocked.

To begin with, players will unlock the planetarium after collecting three items from a designated item pool in a single race. Specifically, this item pool is made up of the 12 zodiac signs, the crystal ball, the 8 magic ball, and the little planet, and any combination of three works just fine. Once these criteria are met, The bond of Isaac fans will receive an indication that they have unlocked planetariums, and they will be able to meet them in their races in the future.


RELATED: The Binding of Isaac: Repentance – How To Enter The Mirror And Get The Knife Piece 1

As for how to find these rooms, the initial chance of a planetarium spawning is only 1%. However, whenever a player jumps an item room in this new The bond of Isaac DLC, this chance is increased by 20%, so fans who are determined to find a planetarium should bypass item rooms whenever possible. Notably, an item room is only considered ignored if a player does not enter it, and entering a room but not picking up an item will have no effect on planetariums.

Additionally, a key is required to enter a planetarium, and hopefully players will have one in reserve when they enter the corresponding gate. Roguelike fans will know they’ve found a planetarium door if they see a crescent moon above, and there’s no real trick to getting in. Players who have a key simply need to go through the portal and they will find a special astronomy item on the other side.

Once a player has unlocked the planetariums, then they should feel free to solve some of the other mysteries in the DLC. Indeed, fans who want to fight the final boss and see Isaac’s Bond: RepentanceThe real ending has a lot to discover, and that’s not even the end of what the game has to offer. Specifically, there are a ton of character variations to unlock, and earning them all is certainly no small feat.

The bond of Isaac is available on PC, Nintendo Switch, PlayStation 4 and Xbox One.

MORE: The Biggest Changes In The Binding of Isaac: Repentance

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Explore the solar system again at Hayden Planetarium

“Worlds Beyond Earth” is the first new space show at the American Museum of Natural History in over six years, and if you haven’t been to a planetarium in a while, the experience is kind of like being thrown out of. orbit yourself.

Surrounded by brilliant colors, the viewer glides through space in all directions, without being bound by conventional rules of orientation or point of view. Dizzying spirals show the orbits of Mercury, Venus, Earth and Mars. At one point, museum visitors are taken on a journey from the perspective of a comet.

Illustrating the far reaches of our solar system, the show draws on data from seven sets of space missions from NASA, Europe and Japan, including the Apollo 15 mission in 1971, which was the fourth to send astronauts on the moon, and still active like Voyager. Museum members will get a preview of the show, which lasts around 25 minutes and is narrated by actress Lupita Nyong’o, during previews this weekend. It opens to the public on Tuesday. (The museum’s current planetarium exhibit, “Dark Universe,” ends Jan. 16.)

Vivian Trakinski, producer of the show, said the idea for “Worlds Beyond Earth” came from the abundance of data collected from the solar system. While raw information isn’t necessarily new, the show brings together distinct sources in an engaging and accessible way that should appeal to adults and children who are hearing about other planets for the first time (although very young children may be exceeded).

Advances in visualization have made it possible to mosaic photographic data from space to create an immersive simulation of celestial bodies across the solar system and through time. Imagery is not pure photography but a form of visual effects. Trakinski likens the process to creating a climate model.

Story-wise, the film, drawing on the realm of comparative planetology, is constructed as a journey to the far reaches of the system – to Titan, Saturn’s “almost Earth-like” moon, courtesy of the spacecraft. spatial Cassini; around Jupiter – and back. And in these journeys, beyond debris and moons, the film illustrates the fragility of the Earth, which positions itself at the limit of habitability.

“We have all of these processes which are similar, we have magnetic fields, we have volcanoes, we have atmospheres, we have gravity,” said Denton Ebel, the geologist who hosted the show. “And these processes lead to this great diversity of results. Ebel, who runs the museum’s meteor room and is chairman of the museum’s physical sciences division, is the first non-physicist to host a space exhibit there.

“Planetary science, especially for places like the Moon and Mars, is no longer done with telescopes,” Ebel said. “We have rovers that analyze rocks the same way we would in a lab here. So it’s geology.

The presentation shows the frightening fates that could have happened to Earth. Mars is presented as a frozen desert – a “failing Earth”. Venus, scorched by the solar wind, with a surface that could melt lead, is seen as a lesson in global warming taken to extremes.

With a sense of movement and scale that only a visual presentation could convey, “Worlds Beyond Earth” takes an open-ended perspective on the dangers of climate change. Another celestial body might have an “alien sea” that “contains more liquid water than all the oceans on Earth,” as Nyong’o relates. But Earth itself, she later adds, is the one place with the right size, the right location, and the right ingredients – a balance that’s easy to upset.

Director Carter Emmart, an astro-visualization specialist who worked at the NASA Ames Research Center before joining the museum in 1998, said a planetarium show is a natural format “to walk around and really see these places.” in a relaxed environment. It is the fruit of missions, during which astronauts are often occupied with mechanical and safety issues.

But when I saw “Worlds Beyond Earth” in a not quite complete version last week, I was also struck by how it harnessed cutting edge filming techniques. It uses a high frame rate – that is, the number of frames displayed per second, which here is 60 instead of the 24 cutscenes – to create a feeling of fluid movement, and it has a complexity of d almost baffling angles and views. Emmart said he spent a lot of time selecting what he called “flight paths” viewers would be sent on.

He also said it was the first new space show to take advantage of the high dynamic range – essentially the spectrum between the brightest whites and the deepest blacks – of the planetarium’s latest projection system.

This means that the loneliness of Earth – in the midst of a vast sea of ​​darkness – will be fully exposed.


Worlds Beyond Earth

Open January 21 (member previews are January 18-20) at the Hayden Planetarium at the American Museum of Natural History, Central Park West, Manhattan; 212-769-5100, amnh.org.


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PlanetSide 2 executive producer Andy Sites leaves Rogue Planet Games

After more than 8 years with Rogue Planet Games, the executive producer Planet Side 2 and the head of the studio, Andy Sites, leaves. Recently, Rogue Planet Games, a development studio that is part of the Daybreak Games studios, was acquired by EG7.

Andy praised the work the whole team has done over the past 8 years and his love for Planet Side 2 and the community. He posted a message in the Planet Side 2 news feed, and provided a general response to the community thanking them for their wishes as he eagerly awaits new opportunities:

Andy left the studio in the hands of Lead Game Designer Michael Henderson and Technical Director Chris Farrar. The team under his leadership worked hard to ensure the transition PS2 Declining player base into a healthy renaissance when they started to deliver new, more exciting content. The changes seemed to have worked well enough that the team was able to expand development over the past two years. Earlier this year, Rogue Planet Games was acquired through the purchase of Daybreak Games by EG7 – a video game holding company that has vast plans to expand through acquisitions.

Andy was a staple of Rogue Planet Games, which had a great relationship with the community. Many attest that he will be missed, despite his assurance that he still intends to be active in the community.

“Although I am no longer a member of the development team, I will continue to be a member of the PlanetSide community. And as a fan, I’m excited about the future of PlanetSide – especially knowing what the team has planned for 2021 and beyond. “

– Former Director of Rogue Planet Games Andy Sites

We can’t wait to see where Andy lands in the future.



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Scientists find rogue planet the size of Mars zooming aimlessly in the Milky Way

Scientists have discovered a lonely orphan planet wandering the Milky Way without a parent star to guide it – a “rogue” planet, stuck in endless darkness with no days, nights, or gravitational siblings to keep it company.

It is possible that our galaxy is filled to the brim with these rogue planets, but this one is particularly unusual for one particular reason: It is the smallest found to date – even smaller than Earth – with a mass similar to that of Mars.

Scientists have discovered more than 4,000 “extrasolar” planets, also known as exoplanets, which are planets orbiting a star other than the sun. Many exoplanets, for example one where it rains liquid iron – are nothing like the planets in our solar system, but they all have one thing in common: they all orbit around a star.

But just a few years ago, Polish astronomers found evidence of free-floating planets, not gravitationally attached to a star, in the Milky Way galaxy. In a new study, the same astronomers have now found the smallest such planet to date.

A rogue planet bends the light of the star behind it, relative to Earth.

Jan Skowron / Astronomical Observatory, University of Warsaw


Exoplanets are difficult to spot, typically found only by observing the light from their host stars. Because the floating planets have no parent star and hardly emit any radiation, astronomers have to take a different approach to find them.

Rogue planets are spotted using gravitational microlenses, the result of Albert Einstein’s general theory of relativity. In this case, the planet’s gravity (lens) acts like a kind of magnifying glass, able to bend light from a bright star (source) behind it so that an observer on Earth can detect its presence.

“The observer will measure a brief brightening of the source star,” lead author Dr. Przemek Mroz, postdoctoral researcher at the California Institute of Technology, said Thursday. “The chances of observing the microlens are extremely slim because three objects – the source, the objective and the observer – must be almost perfectly aligned. If we were to observe a single source star, we would have to wait close to a million. years to see the source be micro-lensed. ”

Researchers on the lookout for these events monitor hundreds of millions of stars in the center of the galaxy, offering the greatest chance of microlensing.

The Optical Gravitational Lensing Experiment, led by astronomers from the University of Warsaw, is one of the largest and longest studies of the sky, operating for more than 28 years. Currently using a telescope at the Las Campanas Observatory in Chile, astronomers look to the center of the galaxy on a clear night, looking for changes in the brightness of the stars.

Because this technique relies only on the brightness of the source and not the lens, it allows astronomers to spot weak or dark objects, like rogue planets.

screenshot-2020-10-30-at-1-12-20-pm.png
Artist’s impression of a gravitational microlens event by a free-floating planet.

Jan Skowron / Astronomical Observatory, University of Warsaw


Measuring the duration of such an event, in addition to the shape of its light curve, can provide an estimate of the mass of the object that astronomers are looking for. While most observed events, caused by stars, last for several days, small planets only offer a window of a few hours.

In this case, OGLE-2016-BLG-1928, the shortest microlens event on record, only lasted 42 minutes. Based on the event, astronomers estimated that the planet has a mass similar to that of Mars and found it to be uncontrollable.

“When we first spotted this event, it was clear that it must have been caused by an extremely small object,” said co-author Dr Radoslaw Poleski of the Warsaw University Astronomical Observatory. . “If the lens were orbiting a star, we would detect its presence in the light curve of the event. We can rule out that the planet has a star about 8 astronomical units away (the astronomical unit is the distance between the Earth and the Sun). “

It’s not entirely clear why these rogue planets don’t have mother stars, but scientists don’t think the planets had a say in the matter. Rather, they may have originally formed as “ordinary” planets – only to be kicked out of their parent systems after gravitational interactions with other planets.

NASA is currently building the Nancy Grace Roman Space Telescope, which is expected to begin operations in the mid-2020s. Studying these floating planets can help astronomers better understand the unstable histories of young planetary systems, including our own solar system. .


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Strange Earth-sized rogue planet found floating in Milky Way

Scientists have discovered another rogue planet, but this one leaves even experts perplexed: It is slightly smaller than Earth and floats through the Milky Way.

The potential exoplanet likely has a mass similar to that of Mars, researchers said in the study published on the arXiv.org repository. Although rogue planets (those without stars) have been discovered before, they are extremely difficult to spot.

“Our discovery demonstrates that low-mass floating planets can be detected and characterized using ground-based telescopes,” said study co-author Professor Andrzej Udalski, principal investigator of the Optical Gravitational Lensing Experiment project. (OGLE). A declaration.

Artist’s impression of a gravitational microlens event by a free-floating planet. Credit: Jan Skowron / Astronomical Observatory, University of Warsaw

A MASSIVE LUMINOUS ‘ROGUE’ PLANET SPOTTED ‘DRIFT’ INTO SPACE

Over 4,000 exoplanets have been discovered by NASA in total, most using the transit method. About 50 of these were considered potentially habitable as of September 2018, as they are the right size and orbit for their star to support surface water and, at least theoretically, to support life.

Transit observations allow astronomers to look at a star and see it sink because another object has crossed in front of it. This type of observation will be extended when NASA launches its James Webb Space Telescope in October 2021. The telescope has been delayed in part due to the coronavirus pandemic, Fox News previously reported.

Another technique, used by researchers in the latest discovery, is the “gravitational microlens,” which allows experts to watch objects in the foreground pass in front of objects in the background. The object in the foreground acts like a lens, bending and magnifying the light to reveal certain features of the object in the background.

The event, known as Google-2016-BLG-1928, is the shortest microlens event ever, at just 42 minutes.

“When we first spotted this event, it was clear that it must have been caused by an extremely small object,” added study co-author Dr Radoslaw Poleski.

“The chances of observing the microlens are extremely slim because three objects – the source, the objective and the observer – must be almost perfectly aligned,” added lead author of the study, Przemek Mroz. “If we were to observe only one source star, we would have to wait almost a million years for the source to be microlensed.”

LAKE GALAXY WAY COULD HAVE “OCEANIC WORLDS” EVERYWHERE, SAYS NASA

In August, a separate group of researchers suggested there might be more “rogue” planets than stars in the Milky Way galaxy.

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Rogue Planet discovered it was crossing the Milky Way without a star

There is a “rogue planet” flying through the Milky Way galaxy – a floating world without a host star. Is it really a Death Star? Marvel villain’s starships Annihilus or Galactus? The planet-sized Unicron Transformer? In the year 2020, everything is surely possible but, alas, no. In a recently published study, scientists announced that they had discovered a rogue planet. It appears to be rather small when it comes to exoplanets, with a mass that would be somewhere between that of Earth and Mars.

“Our discovery demonstrates that low-mass floating planets can be detected and characterized using ground-based telescopes,” said study co-author Andrzej Udalski, principal investigator of the Optical Gravitational Lensing Experiment (OGLE ) led by the University of Warsaw in Poland.

While astronomers have so far discovered 4,000 exoplanets – and there may be many more rogue planets than planets with host stars – detecting a rogue planet is harder than it looks. because there is no light from a host star for scientists to use to help locate the planet.

The OGLE project, using the Las Campanas Observatory in Chile, spotted the rogue planet using a technique known as a gravitational microlens.

As Space.com explains, this method of planet hunting “involves watching foreground objects pass in front of distant background stars. When this happens, the nearest body can act as a gravitational lens. , bending and magnifying the star’s light so as to reveal the mass of the foreground object and other features. “

Lead author of the study, Przemek Mroz of the California Institute of Technology, explained how the chances of such a microlens event are “extremely slim” because it requires perfect alignment of the light source, the lens. telescope and observer lens. “If we were to observe only one source star, we would have to wait almost a million years for the source to be microlensed,” Mroz said.

Star Wars: Every New Planet In The Disney Movies

For more science news, read the evidence for a time-running parallel universe, a cosmic cloud some people claim “Galactus is coming!” , The discovery by NASA of water on the moon, a black widow star that is a source of gamma radiation, the frightening 50-50 chance that we really were living in a simulation, and look at footage from the Osiris spacecraft. Rex landing on an asteroid.



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The Milky Way’s ‘rogue planet’ is the size of Earth, without a parent star

The real Rogue One: Earth-sized planet discovered roaming the Milky Way with no parent star

  • The “floating” planet, linked to no star, was discovered by American and Polish experts
  • Most known planets orbit stars, but the galaxy is probably teeming with such thieves
  • In 2011, for example, the same team found 10 thieves each around Jupiter’s waist.
  • However, the new find is the smallest rogue planet ever to be spotted.

A “floating” planet roughly the size of Earth wandering through the Milky Way – though gravitationally independent of any star – has been discovered, a study has found.

Astronomers from the United States and Poland say this so-called “rogue planet” is the smallest ever identified.

While most of the known planets orbit a star, the team believes our galaxy is teeming with rogue planets, possibly outnumbering the stars in the Milky Way.

In 2011, the team found 10 such objects – each the size of Jupiter, far larger than the current find – that did not have a parent star in all 10 astronomical units.

One astronomical unit is the distance between the Earth and the Sun.

Scientists took advantage of a phenomenon known as a “gravitational microlens” to locate the planet, which was revealed by bending light from more distant stars (as pictured).

Scientists took advantage of an astronomical phenomenon known as a “gravitational microlens” to locate the planet, which was revealed by bending light from the stars farthest behind it.

The result was an effect much like a giant magnifying glass, shining light from a “source” star in the background to reveal the presence of the massive object.

The gravitational microlens are only possible when an astronomer’s telescope is in near perfect alignment with the observed object and the source star.

‘[The] the chances of observing the microlens are extremely slim because three objects – the source, the objective and the observer – must be almost perfectly aligned, ”said author of the article and astronomer Przemek Mroz of the California Institute of Technology .

To spot the rogue planet, the researchers analyzed data collected from microlens surveys of the so-called Galactic Ardennes, the central part of the Milky Way.

The astronomical data was collected by the Warsaw Telescope at the Las Campanas Observatory in Chile.

Researchers have said the newly detected planet is the smallest rogue world ever found, with models indicating that it may have mass somewhere between this Earth and its smaller neighbor, Mars.

To spot the rogue planet, the researchers analyzed data collected from microlens surveys of the so-called Galactic Ardennes, the central part of the Milky Way.  Astronomical data was collected by the Warsaw Telescope at Las Campanas Observatory, Chile

To spot the rogue planet, the researchers analyzed data collected from microlens surveys of the so-called Galactic Ardennes, the central part of the Milky Way. Astronomical data was collected by the Warsaw Telescope at Las Campanas Observatory, Chile

The result of the lens phenomenon is an effect that looks a lot like a giant magnifying glass, which shines the light of a star.

The result of the lens phenomenon is an effect much like a giant magnifying glass, which shines light from a background star “source” to reveal the presence of the object.

“When we first spotted this event, it was clear that it must have been caused by an extremely small object,” said author of the article and astronomer Radoslaw Poleski from the University of Warsaw, Poland. .

“We can rule out that the planet has a star in about eight astronomical units.”

Astronomers believe floating planets can form in rotating disks of dense gas and dust around stars – and be violently ejected from their parent planetary systems after gravitational interactions with other bodies.

Studying these objects could allow astronomers to learn more about the turbulent past of planetary systems like ours, the team said.

The full results of the study were published in Astrophysical Journal Letters.

GRAVITATIONAL LENS

Gravitational lensing occurs when a massive galaxy or cluster of galaxies bends the light emitted from a more distant galaxy.

This forms a very magnified image, although it is very distorted.

This is because massive objects curl space-time around them, causing light to travel in a different path.

This theory was first proposed by Einstein in his theory of general relativity.

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