Earth, sun, moon: three objects in space whose interactions have a pretty big impact on our lives. Earth orbits the sun once a year, and it rotates on its axis about once a day (depending on your ...

A Dec. 28, 2023, Facebook post (direct link, archive link) claims humanity's basic understanding of the solar system is flawed. "They say the sun is 400 times larger than the moon and that it only ...

The moon will drift far enough from Earth that it no longer fully obstructs the sun. But predicting when this will happen poses numerous challenges. By Katherine Kornei The total solar eclipse visible ...

The Moon has long been the Earth's close companion, but researchers have struggled to understand exactly when the moon formed, because tiny crystals in the moon rocks brought home by astronauts ...