A recently observed object called 2025 PN7 was found orbiting near the Earth. The quasi-moon is expected to accompany our ...

Because the Earth is doing the work of increasing the Moon's momentum, the Earth's rotation slows down in turn, as its ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases the size of the Moon’s orbit. This means that the Moon gets slightly farther ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

Instead of using solid fuel elements, this innovative design uses liquid uranium fuel to heat the rocket propellant directly.

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and ...

The Griffith Observatory in California had a great view of the Mars-Moon occultation. See the Red Planet slip behind the moon and re-emerge in this time-lapse. Credit: Griffith Observatory | edited by ...

An uncrewed mission called Artemis 1 flew around the moon and back again in 2022. Four astronauts aim to do the same next ...

Three celestial bodies are about to meet up for one night in September in a conjunction that should be widely visible in the ...

Jezero Crater’s rocks reveal three stages of water activity, shifting from hostile acidic fluids to more life-friendly ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology ...