But is our moon actually a planet? The answer is technically no — at least according to NASA and the International Astronomical Union (IAU), an important global authority in astronomy.

Our moon bears a lot of responsibility: Its gravitational pull on the planet influences ocean tides; it can tell us a lot about the history of our solar system; and the midcentury race to land on ...

The crystal, which appears as a colorless, transparent ... s own efforts on the Red Planet. The United States remains the only nation to ever land an astronaut on the moon, a feat it hopes to ...

A cosmic spectacle is unfolding overhead, with a rare parade of planets turning the night sky ... Mars is near the moon right now. It is in opposition, making it one of the brightest objects ...

For the first time, astronomers think they've found solid evidence of a moon orbiting a planet outside of our solar system. And it's a doozy. The exoplanet, named Kepler-1625b, is 8,000 light ...

It will eventually break free of the planet’s gravitational orbit. Sadly, at just about 10 meters, the mini-moon will be extremely hard to see from Earth, but its presence will be there ...