The Artemis 2 astronauts will venture deeper into space than any human has gone before. That presents some seriously exciting ...

Quantum mechanics has always carried a quiet tension. At its core, the theory allows particles to exist in many states at ...

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational ...

There's no telling what will gain traction on social media, but one conspiracy theory has gained enough traction for NASA to make a statement.

Spacecrafts don’t just rely on rockets—they use planets to pick up speed! Spacecrafts don’t just rely on rockets—they use planets to pick up speed! It’s called a gravity assist, and it’s one of the ...

For nearly a century, astronomers have watched galaxies spin and the universe expand in ways that visible matter alone cannot ...

A newly detected gravitational wave, GW250114, is giving scientists their clearest look yet at a black hole collision—and a powerful way to test Einstein’s theory of gravity. Its clarity allowed ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

Astronomers have long faced a strange contradiction: most stars are born in pairs, and ...

Do we all need to tether ourselves on August 12?

The Moon is far stranger than most people realize. It has moonquakes, a thin exosphere, frozen water trapped at its poles, ...

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...