Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

Planetary alignments have always been a fascinating subject, both for scientists and astrology enthusiasts alike. The idea that planets aligning in a straight line could have any sort of impact on ...

While Earth's slowdown is not noticeable on human timescales, it's enough to work significant changes over eons. One of those ...

In equatorial orbit, the motion of the Earth’s spin helps you along. Therefore, satellites are generally hurled into space eastward to take advantage of Earth’s rotation. “In short ...

The 24-hour day we’re used to might not stay the same forever. Scientists say Earth’s rotation is gradually slowing down ...

Asteroid 2024 PT5 is about the size of a bus, standing at around 33 feet long, and researchers predict it will make a horseshoe-like orbit around Earth instead of a full rotation around the planet.

However, instead of flying in the direction of the Earth's rotation to gain more momentum ... For one thing, a polar orbit requires more fuel than an equatorial one. In addition, the Earth's ...