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 total eclipse can only happen during a new moon. How many Earth moons would fit across the face of the Earth? How many Earths would fit across the Sun? How many times further away is our Sun from ...

The moon appeared to turn red as Earth passed directly between it and the sun in what's known as a total lunar eclipse. Their perfect alignment darkens the moon, from the perspective of folks ...