New simulations suggest Venus' extremely slow rotation could have caused a hypothetical moon to spiral inward and collide ...

Scientists say the Moon's tidal pull and melting ice are lengthening Earth's day by tiny fractions. The shift is minuscule ...

Venus may have once had a moon, but new research suggests the planet’s incredibly slow rotation could have doomed it.

A new study suggests that Venus may have once had a moon that was eventually pulled towards the planet by tidal forces and ...

I live in the northern hemisphere (Seattle, WA) and I was asked why the Moon's face turns or rotates in the sky. The example given to me: The Moon obviously isn't orbiting quickly (about once every 29 ...

New research suggests that Venus's slow spin rate and strong gravity likely caused any hypothetical moon it once had to crash into the planet. This study, led by astrophysicist Stephen Kane, models ...

One of our solar system’s biggest puzzles has long been why Venus has no moon. Often referred to as Earth’s twin, Venus is almost the same mass and size as our own planet. But it does have an ...