We’ve learned that Earth-sized planets aren’t alone out there. Thanks to missions like NASA’s Kepler and TESS telescopes, we’ve spotted dozens of rocky worlds ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists are observing an Earth-like exoplanet that may contain water using NASA's James Webb Space Telescope, the space agency ...

When NASA’s Perseverance rover dropped through the thin Martian atmosphere and settled into Jezero Crater, it did more than stick a precision landing. For the first time, a robot on another world ...

NASA’s James Webb Space Telescope has found the most compelling evidence to date that a rocky planet beyond the solar system may have an atmosphere. Although it’s not Earth-like, a planet called ...

When it comes to the question of which planet humanity could one day call home, the obvious choice might seem to be Mars. But surprisingly, Venus might actually be a better candidate for human ...