"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Successful launches are helping Jeff Bezos’ company set up missions to ferry cargo—and eventually astronauts—to the lunar surface.

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Searching for exomoons—moons that orbit around another planet—was one of the most exciting capabilities expected of the James ...

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

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

Grand Canyon, Yellowstone’s Old Faithful, Niagara Falls. The usual suspects that dominate Instagram feeds and postcards. Yet ...

According to the leading theory of how the Earth-Moon system formed (the Giant Impact Hypothesis), a Mars-sized object (named ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...