The planets have been nicknamed Earth's seven sisters. — -- An international team of astronomers has discovered seven potentially habitable exoplanets — or planets outside our solar system — that ...

Are we alone in the universe? It's a question that has sparked curiosity in astronomers for generations. There are at least 6,000 known planets outside our Solar System (also known as exoplanets), but ...

Astronomers have taken a huge leap towards discovering habitable worlds, and the world now eagerly anticipates a rocky planet orbiting a faint star 40 light-years from home. Scientists are homing in ...

If you’re in the mood for a road trip and have a few hundred million years to kill, we have the destination for you. About 40 light-years away, orbiting a dim, cool red star called Trappist-1 are ...

In the search for signs of life on what seemed like a promising little exoplanet, astronomers’ hopes have dimmed. Living things, as we understand them, seem to flourish best in an atmosphere like the ...