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 ...

Discover the Moon Phase Today, December 10, 2025. It's a Waning Gibbous (65-68% lit). Learn the 8 phases, lunar cycle, and ...

Visualization of the Sun-Earth Lagrange points. Orbital mechanics is a fun subject, as it involves a lot of seemingly empty space that’s nevertheless full of very real forces, all of which must be ...

The Earth is getting a second moon for a limited time beginning the end of September. An asteroid will come close enough to Earth to temporarily enter its orbit at the end of the month, a phenomenon ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...

NASA calls it *** cosmic touch and go. When we made contact with the surface, there was *** one second delay and then we fired that high pressure nitrogen gas and the surface just exploded in October ...

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...