If you examine our solar system’s giant planets, you’ll notice right away that they’ve all got moons—a lot of moons. While ...

NASA announced a new milestone in its search of the stars. It has now found more than 5,000 exoplanets -- those outside of our solar system. “It’s not just a number,” Jessie Christiansen, a researcher ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Computer simulations suggest NASA’s Habitable Worlds Observatory could detect Earth-like exomoons around gas giant exoplanets through reflected starlight and lunar eclipses.