The image of Luke Skywalker gazing wistfully across the desert of Tatooine while a pair of “suns” set on the horizon is among ...

With the gap between them very gradually narrowing as the binary system loses energy, the fact that they are so massive and ...

Scientists recently announced the first detection of gravitational waves created by two neutron stars smashing ... to eight times the size of our own sun before exploding in catastrophic supernovae.

Venus and Jupiter, bracketing the sun ... be affected by gravity. The French mathematician Pierre-Simon Laplace even proposed, in 1795, that gravity could be strong enough to pull light into ...

The difference this time is that two stupendously precise detectors ... yet in familiar contexts like the gravitational pull of the Sun or Earth, Einstein’s predictions barely differ from ...

Packing all of that bulk—many times the mass of our own sun—into such a tiny point gives black holes their powerful gravitational pull. Thousands of these stellar-mass black holes may lurk ...

This global water pressure works against Earth's gravity to form two bulges ... pressure that can visibly overcome the pull of Earth's gravity. The sun's gravity also affects the tides, accounting ...

Just as the Earth pulls water downwards (in waterfalls, for example), the weaker gravitational pull of the Sun and Moon pull water sideways across the Earth. Why do we have two tides a day?