Fresh data from the James Webb Space Telescope provide more evidence for what some consider a biosignature — but debate is ...

Slushy hailstones of ammonia and water were part of a bizarre theory to explain the planet's poorly mixed atmosphere. These mushballs seem to be real, say UC Berkeley scientists.

With the James Webb Space Telescope, astronomers say they are working to confirm potential evidence of life on a distant ...

Even in the best of circumstances, however, talk of a biosignature is an invitation to scientists to think of alternative ...

Bold claims of ‘biosignature’ molecules trigger an outpouring of scepticism.

A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d is ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, ...

Jupiter is the heavyweight champion of the planets, but Neptune is no slouch either. According to NASA, Neptune is about 17 t ...

K2-360 is a newly found planetary system with a super-dense planet, likely the core of a former larger world, shaped by ...

Average Surface Temperatures of All Planets: There are eight planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, with Pluto now categorised as a dwarf ...

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Astronomers had observed auroras on all other planets in the Solar System, and spotting one in Neptune completes the list.