It's the sequel we weren't prepared for.
Even in space, bureaucracy exists.
It's the farthest object we've ever spotted in our neighborhood.
It's now one of two working spacecraft in interstellar space.
We're under a time crunch.
And it could help prove the existence of Planet Nine.
An 'Oumuamua by any other name would still be as fascinating.
You map, IMAP, we all map.
Is there a planet—or even planets—waiting to be discovered out there?
The traveller (maybe from another star) didn't stay long and it's moving away fast
Europa, the outer solar system, and a lot of questions.
Konstantin Batygin is one of the 10 most brilliant people of 2016
When NASA's OSIRIS REx probe launches on Sept. 8, it will be carrying this innovative tool
It could give us clues to how water got to Earth
In the vicinity of the coldest known object out there
Northwestern University puts on a Solar System symphony
Frozen drinks anyone?
And it's still not Pluto
Planet 2MASS J2126-8140 orbits a trillion kilometers out from its sun
How skeptical should we be, and how will we find out if this mystery planet is really out there?
We are very very small
Raise the e-sail
The finding is good news for the search for intelligent alien life