The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

As Earth's ever-present celestial companion, the moon exerts a constant influence on our planet, and its disappearance would ...

While Lunar Trailblazer's mission is no longer possible, the space agency is assessing other options for the spacecraft.

This is the more likely scenario over billions of years, NASA said, because the sun and the moon are tugging on Earth's spin. That would give plenty of time for humans, animals and plants to get ...

March's full "Blood Worm Moon," a phenomenon that makes the moon appear red during a total lunar eclipse, is visible this week for Americans and others in Earth's Western Hemisphere. The full moon ...

March brings thrilling celestial events, including a rare chance to spot Mercury, a stunning total lunar eclipse, and ...

Two lunar missions had a rough start in recent days, one utterly scuttled by a tipped lander and another jeopardized by a ...

A total lunar eclipse occurs when the Earth makes its way between the sun and moon. The Earth casts a shadow on the surface of the moon, dimming it. The next lunar eclipse visible in the U.S ...