Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life. An astronomer explains.

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year ...

Top Astronomers Just Revealed the Most Convincing Proof of Alien Life Until Today ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

Scientists may need to broaden their horizons in their search for alien life.

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

Well, at least that means no alien invasions anytime soon.

Most people believe in life on other planets, a newly released study that canvassed respondents around the world claims. After surveying 26,492 people in 24 countries, research firm Motivaction found ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...