The moon's orbit isn't a perfect circle. Instead, it's more stretched out, kind of like an oval, which means its distance from Earth varies by about 30,000 miles (48,000 km). The surface of the moon ...

The hollow moon conspiracy theory came about during the Apollo missions in 1969. Conspiracy theorists misinterpreted the results of the astronauts’ seismic experiments, leading them to believe the ...

The Moon has long been cast as a dead world, a place of dust, vacuum and brutal temperature swings that no living thing could endure. New research now suggests that picture is incomplete, hinting that ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The past few years ...

In 1968, just a year before the historic Apollo 11 Moon landing, NASA scientists discovered something that could have sent astronauts Neil Armstrong, Buzz Aldrin and Michael Collins plunging to their ...

People have long since wondered if any other planets in our solar system could house us and other life forms, and after decades of research, NASA thinks it might have found one: Europa, Jupiter's ...

"My first thought was, 'holy shmolies, that can't be right'. These are just very surprising results." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Crowds look on as the super moon rises behind the Fremantle War Memorial at Monument Hill on November 14, 2016 in Fremantle, Australia. A super moon occurs when a full moon passes closes to earth than ...

The new moon on Saturday, Aug. 23, will be a seasonal “black moon” — a rare occurrence when four new moons fall within a single season. While it’s mainly a calendar quirk, it holds added significance ...

The moon is our constant companion and the only natural object that always orbits Earth. It's about four times smaller than Earth and its gravity is much weaker, which is why astronauts bounce around ...