There is less gravity in space than there is here on Earth, which could be one of many challenges for the long-term viability (or, at the least, convenience) of space habitats for future galactic ...

For more than a century, physicists have been trying to reconcile the smooth geometry of gravity with the jittery ...

Just three numbers—that’s all it takes to completely, unequivocally, 100 percent describe a black hole in general relativity. If I tell you the mass, electric charge, and spin (i.e., angular momentum) ...

I rarely write much about it in my research papers, but every piece of science I have ever done either assumes the correctness of general relativity – our most fundamental theory for explaining ...