This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole ...

Scientists have long sought the particle that carries the force of gravity, but a new theoretical model tosses out that idea ...

The image of an atom, with electrons swarming around a central nucleus bulging with protons and neutrons, is as iconic in our perception of science as the DNA helix or the rings of Saturn.

The International Space Station is humanity’s most expensive gym membership. Since the earliest days of human spaceflight, it’s been understood that longer trips away from Earth’s gravity ...

planets, asteroids and comets to orbit the Sun; moons to orbit planets; artificial satellites to orbit planets; a dropped mobile phone to fall to the ground. Back in 1687, Sir Isaac Newton ...

Isaac Newton - isn't he the guy who discovered gravity? Great! So, what's gravity? Aaaah, gravity is the force that makes objects fall towards the ground. And, without gravity, we'd all float!

If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding light on dark matter and dark energy. A new recipe for gravity could help ...

While quantum mechanics governs the behavior of particles at the smallest scales, general relativity describes the force of gravity on cosmic scales.