Narrator: Black holes are some of the most ... Brown noticed that some of them have highly unusual orbits. While most objects in our solar system orbit the same plane, and in the same direction ...

This video is a part of a series looking at the Outer Solar System. The Oort Cloud is ... ‘I wasn’t feminine enough. I wasn’t white enough or Black enough’ ...

"That's when we started thinking about the very precisely measured orbits of objects in the solar system." In principle, a primordial black hole's gravitational pull "could produce wobbles in the ...

Earth has a nearly circular orbit, but some planets outside our solar system, called exoplanets, have very elliptical orbits. UCLA astrophysicists have now measured the shape of the orbits of ...