Moons orbiting rogue planets, worlds flung from their parent star systems into the cold of interstellar space, could maintain liquid water on their surfaces for billions of years if wrapped in a dense ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known exoplanets that may have the right conditions to support life. Using new ...

Want to see something dazzling in April? Look up. Stargazers in California can spot a pink moon, planets and a meteor shower in the weeks to come. Here’s what is happening, and when: When’s the best ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of ...

Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in starlight turned out to be massive rings of plasma swirling in the stars’ ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a theoretical planet orbiting a redder star, which could cause microbes and plants on the planet's ...

Provided they host thick, hydrogen-dominated atmospheres, moons orbiting free-floating exoplanets could retain much of the heat generated deep within their interiors by tidal forces. Led by David ...

Investor excitement around the SpaceX IPO is colliding with peak Elon Musk futurism after a new social media post featuring his musings about light-speed travel and exploring alien worlds. In a social ...

(NewsNation) — Images of a pyramid-like shape on the surface of Mars are propelling theories that alien beings constructed the object, but one expert on the Red Planet has some disappointing news for ...