Add Yahoo as a preferred source to see more of our stories on Google. A huge, unusually dense planet more than twice the size of Earth is puzzling scientists because it has very little atmosphere, ...

A star 1,300 light-years away appears to have just consumed one world and is gearing up for seconds. By Becky Ferreira A star located about 1,300 light-years from Earth shows signs of having devoured ...

A huge, unusually dense planet more than twice the size of Earth is puzzling scientists because it has very little atmosphere, despite being massive enough that researchers would expect it to have ...