Many in the space community are very concerned about low-gravity, no-gravity and radiation for people living for long durations in space colonies on planets, moons, asteroids or orbital bases. These ...

Despite dozens of experiments over the years, scientists still don't have a precise measurement for gravity's strength. Why is that?

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 ...

The Indian Ocean looks flat from above, but one part of it sits far lower than it should. South of India, the sea surface dips so deeply that scientists have spent decades trying to explain what could ...

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) ...