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

Workshops, zero-gravity flight experiences will help teachers connect math, science curricula to human space exploration What: Press conference and inaugural flight to introduce first-of-its-kind ...

As far as we know, our physical world is governed by four fundamental forces: electromagnetism, weak and strong nuclear forces, and gravity. Apart from playing with bar magnets or marveling at the ...

What would happen to the solar system if half of the universe disappeared? From Newton to Einstein, most experts have agreed that nothing much would happen except that the sky would have fewer stars.