This one-of-a-kind adventure travel experience invites enthusiasts to slumber beneath the cosmos, amidst telescopes and ...

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, ...

Seven planets grace the sky at the end of February in what’s known as a planetary parade, though some will be difficult to ...

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.