(THE CONVERSATION) A team of astronomers announced on April 16, 2025, that in the process of studying a planet around another star, they had found evidence for an unexpected atmospheric gas. On Earth, ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But ...

Observations by the James Webb space telescope find possible biological activity on a giant planet 124 light-years from Earth ...

That exoplanet is 124 light-years away in the Leo constellation. It's described as much larger than Earth but smaller than ...

A team of astronomers have detected what they call the most promising signs to date of a possible biosignature, or signs of ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, ...

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in a blistering, dense atmosphere rather than a watery Hycean planet. Webb ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

“Given everything we know about this planet, a Hycean world with an ocean that is teeming with life is the scenario that best ...

These atmospheric markers have positioned K2-18b as one of the most promising candidates in the search for extraterrestrial life. The planet, which orbits within the habitable zone of its red dwarf ...

NASA’s James Webb Space Telescope detected an intriguing compound in the atmosphere of the exoplanet K2-18 b, but scientists ...