The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the solar system was just getting started, a Mars-size protoplanet named Theia ...

A team of geologists at the Chinese Academy of Geological Sciences, the Institute of Space Sciences and the Shandong ...

Earth is the only rocky planet in the solar system with a significant moon. And the moon really is significant: It's roughly 1.2% the mass of Earth. That may not be big in an absolute sense ...

New research from scientists with the Chinese Academy of Geological Sciences and published in the journal Science found that sample analysis backs up an established model of the moon as a global ...

Experts analyzed satellite imagery of planetary surface cracks and compared them with Earth's geologic features, searching ...

The Blue Ghost spacecraft, named for a species of firefly, took eclipse chasing to new heights. Not only did it see the Earth ...

Blue Ghost completed 14 days of surface operations, deploying its various payloads and transmitting more than 119 gigabytes ...

Seleucus of Seleucia was an ancient astronomer who defended heliocentrism, arguing that Earth orbits the Sun and rotates on ...

Stargazers looked to the Sky last week to watch a total lunar eclipse but what they didn’t see was the total solar eclipse ...

A blood moon lunar eclipse happens when Earth lines up between the sun and ... wildflowers (native and not). This is a good model for homeowners: that lawns can be lawns without herbicides.” ...

More than 50 years after Apollo 8’s legendary Earthrise photo, a new image from the Moon’s surface delivers a hauntingly ...