Astronomers have discovered a major sign of life — and “the first hints… of an alien world” on a distant planet orbiting outside the solar system, according to a new report. The scientists believe the ...

An Oct. 11 Facebook post (direct link, archive link) shows an image of Earth and another, larger planet beside it. "This is K2-18b, a potentially habitable planet covered with oceans and about 2.6 ...

Add Yahoo as a preferred source to see more of our stories on Google. The first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying around ...

Could alien life be hiding just 120 light-years away? That’s the question raised by a new study led by Professor Nikku Madhusudhan of the University of Cambridge’s Institute of Astronomy. Published on ...

An artist's impression showing K2-18b, the only known exoplanet that contains both water and temperatures that could support life. Image Credit: ESA/Hubble, M. Kornmesser Share This week, astronomers ...

Researchers using the Hubble Space Telescope have discovered water vapor in the atmosphere of planet K2-18b, located about ...

The tantalising prospect that we might not be alone in the universe is a step closer to reality thanks to the discovery of a possible sign of life on a distant planet. Data from the massive telescope ...

Are Hycean exoplanets, which are a combination of hydrogen and a potential liquid water ocean, less common than previously hypothesized? This is what a recent study published in The Astrophysical ...

The awkwardly named K2-18b may look like Neptune, but it could be hiding a giant, habitable Earth-like planet beneath its atmosphere. Eric Mack has been a CNET contributor since 2011. Eric and his ...