The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

A: I have flown many times in zero-gravity airplane flights. Each time I still enjoy the feeling of floating free, the ability to fly across the cabin from just one gentle push on the wall, just like ...

One of the most astonishing facts about science is how universally applicable the laws of nature are. Every particle obeys the same rules, experiences the same forces, and sees the same fundamental ...

China has quietly switched on a machine that can subject objects to gravity up to 1,900 times stronger than what we feel at Earth’s surface, compressing decades of wear, stress, and catastrophe into a ...