In 1966, NASA's Lunar Orbiter 1 took the first photo of Earth from the Moon's orbit. The iconic image was restored in 2008 ...

Jupiter's moons resemble little moons! Do they orbit in a regular pattern, similar to how the Moon orbits the Earth? Today, ...

This week in Starwatch I want to go back to basics when it comes to the moon. So why does the moon change shape? Why is it a ...

To find out how fast the Earth is spinning at all, you need to find a reference frame in which, ideally, nothing is moving.

But Earth’s rotation could change by a millisecond (.001 seconds) or two every day. The orbit of the moon can have an effect on how fast the Earth spins around.

A strange shift in Earth's rotation is making our days milliseconds shorter — and scientists are racing to understand why.

The Psyche spacecraft is on a six-year journey to reach a metal-rich asteroid by the same name. Well into its voyage, the ...

Many of us have heard the term “blue moon,” which refers to two full moons during a single month. Thanks to astronomy enthusiasts and journalists, when there are two new moons during the same month, ...

You know, if you think about it, and trust me we're about to, the moon is kind of weird. Of all the terrestrial worlds of the ...

Zotov predicts Earth’s rotation may soon decelerate once again. If he’s right, this sudden speeding-up could prove to be just ...

Until 2020, the shortest "length of day" ever recorded by atomic clocks was -1.05 ms, meaning that Earth completed one daily rotation in 1.05 milliseconds less than 86,400 seconds.

Until 2020, the shortest "length of day" ever recorded by atomic clocks was -1.05 ms, meaning that Earth completed one daily rotation in 1.05 milliseconds less than 86,400 seconds.