New research sheds light on how the "hell planet" got so devilishly hot and how other worlds might become too toasty for life. That rocky world, 55 Cnc e (nicknamed "Janssen"), orbits its star so closely that a year lasts ...
Astronomy
Dec 8, 2022
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180
On Earth, shifting tectonic plates reshuffle the planet's surface and make for a dynamic interior, so the absence of such processes on Mars led many to think of it as a dead planet, where not much happened in the past 3 billion ...
Astronomy
Dec 5, 2022
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701
Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new ultra-short-period exoplanet. The newfound alien world, designated HD 20329 b, orbits its host star in slightly ...
Using radial velocity measurements, astronomers from Japan and China have detected a new exoplanet orbiting a G-type giant star. The newfound alien world is similar in mass to Jupiter but much hotter than the solar system's ...
The James Webb Space Telescope (JWST) has just scored another first: a detailed molecular and chemical portrait of a distant world's skies.
Astronomy
Nov 22, 2022
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3076
For centuries, no one knew if we were alone in the universe—or if there were even other planets like ours.
Astronomy
Nov 22, 2022
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497
A team of researchers at the University of Copenhagen's Center for Star and Planet Formation, working with colleagues from Université de Paris, ETH Zürich and the University of Bern, has found evidence suggesting that most ...
A team of astronomers have found that planet formation in our young solar system started much earlier than previously thought, with the building blocks of planets growing at the same time as their parent star.
Astronomy
Nov 14, 2022
0
380
Astronomers led by the University of Warwick have identified the oldest star in our galaxy that is accreting debris from orbiting planetesimals, making it one of the oldest rocky and icy planetary systems discovered in the ...
Astronomy
Nov 5, 2022
2
735
Planets can force their host stars to act younger than their age, according to a new study of multiple systems using NASA's Chandra X-ray Observatory. This may be the best evidence to date that some planets apparently slow ...
Astronomy
Nov 2, 2022
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