Something is hiding inside Kepler-51d, and it’s doing a remarkably good job of it. About 2,615 light-years away in the constellation Cygnus, this peculiar world orbits a young Sun-like star every 130 ...

Explore 25 Abandoned NASA Missions you've never heard of. Discover the untold stories of ambitious space projects canceled due to budget, tech, or politics ...

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 ...

Extreme exomoons with tidal heating and thick, hydrogen-rich atmospheres may be able to create billions of years of potentially habitable surface conditions.

Today: Signs of spring: flower buds, leaves on the trees, beetle larvae, and the Spring Triangle.

We are now officially in the season of spring with the start at the March equinox yesterday, though the weather seems to have jumped to summer!

Data collected by NASA's missions about interstellar comet 3I/ATLAS will continue to reveal insights about the comet and interstellar objects at large.