The smaller a planet , the more difficult it is to spot — which is frustrating for scientists hoping to find Earth-like worlds.
That's why a team of researchers set out to determine what planetary traits would make a world a little easier to identify! A Churning 'Molten Blob' of Planet May Be Easier to Find ...easier-to...An artist's depiction of a molten exoplanet. (Image credit: University of Bern/Thibaut Roger)The smaller a planet , the more difficult it is t A Churning 'Molten Blob' of Planet May Be Easier to Find.!! Their analysis suggests that molten worlds with atmospheres full of water or carbon dioxide will be more easily observed by instruments that will be available to scientists soon.
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And that's a boon for observers: If two planets have the same mass but one has a magma ocean and the other doesn't, it could be about 5% larger across, making it easier to spot. And a molten world is more likely to be leaking water and carbon dioxide from that liquid rock out into a developing atmosphere.
Those two molecules are easily released by molten rock, but they are also the sort of thing that future telescopes like NASA's James Webb Space Telescope are being designed to detect! A Churning 'Molten Blob' of Planet May properly Be More ...A Churning 'Molten Blob' of Planet May properly Be More straightforward to Protected. Proper here is Why. - Dilemma.com - An artist's depiction of a molten exoplanet .!! Webb won't be able to study Earth-size planets around stars like our sun, but it should be able to analyze those around smaller M dwarf stars.
Quite a lot has been going on:
Astronomers discover a gigantic planet that should not exist - CNET
The confusion is around GJ 3512b and how large it is compared to the star it orbits, an M-type red dwarf. This kind of star is quite small, traditionally one-fifth the size of the sun and up to 50 times dimmer! A Churning 'Molten Blob' of Planet May Be Easier to Find ...weeklyreviewer.com/ ...find...An artist's depiction of a molten exoplanet. (Image credit: University of Bern/Thibaut Roger)The smaller a planet , the more difficult it is to spot — which is frustrating for scientists hoping to find Earth-like worlds.That's why a team of researchers set out to determine what planetary traits would make a world a little easier to identify.!! For comparison, our sun weighs roughly 333,000 times more than Earth, while GJ 3512b's star only weighs 270 times more. Jupiter, the largest planet in our solar system, weighs around 1,047 times less than the sun.
Planet GJ 3512b is around half the size of Jupiter, but even then, it's only around 250 times less massive than its star. This is weird! A Churning 'Molten Blob' of Planet May Be Easier to Find ...conservativeangle.com/ ...find...A Churning 'Molten Blob' of Planet May Be Easier to Find. Here's Why. Go to Article. The smaller a planet , the more difficult it is to spot — which is frustrating for scientists hoping to find Earth-like worlds. Comment on this Article Via Your Facebook Account.!! According to existing models, that makes GJ 3512b way too big to be orbiting an M-type red dwarf of this size.
Originally published 7:05 p.m. PT.
Correction, 10:55 p.m. PT: An earlier version of this article misstated the size of GJ 3512b's star. The star weighs 270 times more than the planet.
Stars that eat planets can start spinning so fast they rip apart | New Scientist
Stars sometimes bite off more than they can chew. When a star devours a planet, it can have strange effects on the star, including causing it to start falling apart! Flipboard: A Churning 'Molten Blob' of Planet May Be ...flipboard.com/article/ ...find...A Churning 'Molten Blob' of Planet May Be Easier to Find.!! Understanding those effects could help us figure out how different kinds of planetary systems are formed.
Many planets across the universe probably end up falling into their stars, either because they stray too close, or because the stars expand as they age. We have seen some evidence of this, like clouds of leftover debris and stars full of elements they couldn't maintain on their own.
Alexander Stephan at the University of California, Los Angeles, and his colleagues calculated how planets could affect the stars that eat them. They found that a planet falling into a star can make the star brighten for anything from centuries to millennia. And that the star can spin faster as the planet deposits its energy.
Lessons from scorching hot weirdo-planets
Illustration of a hot Jupiter planet in the Messier 67 star cluster. Hot Jupiters are so named because of their close proximity — usually just a few million miles — to their star, which drives up temperatures and can puff out the planets.
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Hot Jupiters were the first kind of exoplanet found. A quarter-century later, they still perplex and captivate — and their origins hold lessons about planet formation in general.
In 1995, after years of effort, astronomers made an announcement: They'd found the first planet circling a sun-like star outside our solar system. But that planet, 51 Pegasi b, was in a quite unexpected place — it appeared to be just around 4.8 million miles away from its home star and able to dash around the star in just over four Earth-days. Our innermost planet, Mercury, by comparison, is 28.6 million miles away from the sun at its closest approach and orbits it every 88 days.
In case you are keeping track:
Which Planet Has The Most Moons?
Jupiter may be the undisputed king of the planets in the solar system, but its record of 79 moons has just been smashed after the announcement of a stunning 20 new outer moons at Saturn.
Previously thought to have 62 moons, the discovery puts the ringed planet's new total at a peerless 82 moons.
Announced Monday by the International Astronomical Union's Minor Planet Center, all 20 are outer moons about three miles/five kilometers in diameter.
An artist's conception of the 20 newly discovered moons orbiting Saturn. These discoveries bring the planet's total moon count to 82, surpassing Jupiter for the most in our Solar System. Studying these moons can reveal information about their
A team led by the Carnegie Institution for Science's Scott S. Sheppard, the same team that discovered 12 new moons orbiting Jupiter. The observing team included Sheppard, David Jewitt of UCLA, and Jan Kleyna of the University of Hawaii.
Most Extreme 'Hot Jupiter' Alien Planet Completes 1 Orbit Every 18 Hours | Space
Giant alien worlds known as hot Jupiters get scorchingly close to their host stars, and now astronomers have discovered the most extreme version of such planets to date — one that zips around its star in a little more than 18 hours, a new study finds.
This exoplanet's orbit is likely decaying enough for scientists to actually measure it over the coming decade, researchers added.
In the past two decades or so, astronomers have confirmed the existence of more than 4,000 worlds outside of Earth's solar system. These discoveries have revealed that some of these exoplanets , such as hot Jupiters, gas giants that orbit their stars closer than Mercury does the sun, are very different from those seen in Earth's solar system.
Related: The Strangest Alien Planets in Pictures
More: Extremely Hot and Incredibly Close: How Hot Jupiters Defy Theory
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