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 ...

Astronomers have discovered a potentially habitable new planet that is around 146 light-years away and is actually remarkably similar to Earth with just one stark difference: it could be colder than ...

NASA’s Hubble Space Telescope imaged for the first time a chaotic and turbulent disk in visible light. It found the largest protoplanetary disk ever observed orbiting a young star with material ...