There's New Evidence Of A Distant Ninth Planet In Our Solar System
In the distant reaches of the Kuiper Belt, dwarf planet Sedna could be in the gravitational pull of another unseen planet, nicknamed "Planet 9."
LEARN MOREPluto was demoted to a dwarf planet in August 2006. A proposed change to the definition of "planet" could return it to its former status.
Are you wondering what all the hype is about involving the upcoming solar eclipse? Here is a complete guide to answer your top questions.
Terry Virts addresses whether viewing an eclipse is better from Earth or while up in space.
Researchers will be standing by to observe how animals' routines at the Fort Worth Zoo in Texas are disrupted when skies dim on April 8.
A Ukrainian teenager named Denys escaped this year from Russia. But since then, he hasn't been able to leave Poland.
The sweeping suit against Sean "Diddy" Combs, filed last month, alleges sexual assault, harassment and more.
Supreme Court arguments in a medicated abortion case are shining a spotlight on a key federal obscenity law.