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 ...

As well as rotating, the Earth has a tilt in its axis that brings the northern and southern hemispheres closer to and further away from the Sun each year, which causes the seasons. The Moon's ...

It caused ejected debris to form our moon — and caused the Earth’s tilt. Theia is named for the Greek goddess of light, daughter of Gaia (Earth) and Uranus (sky), and mother of the sun, moon and ...

The Greeks built on Babylonian astronomy to make their observations of eclipses, and the word “ekleipsis ... occur when the moon passes directly between the sun and Earth’s orbits ...

What is a lunar eclipse and why does it make the moon look red? When the sun, Earth and moon all align so that the moon passes into the Earth's shadow, there's a lunar eclipse. During a total ...

There are tidal effects from the Sun and other planets. Anything on the surface of the Earth or Moon is moving due to rotation; other objects are moving while in orbit. The gravitational influence ...