There's a lot more to the Earth's atmosphere than we might first realize, with some definitions having it extend halfway to the moon. We tend to take it for granted, but our atmosphere plays many ...

The quest to understand the chemical makeup of distant celestial bodies is gaining momentum thanks to the advanced ...

New experiments with Apollo moon dust show micrometeorites - not solar wind - are the main source of the Moon’s thin ...

Saturn’s moon Titan has always stood out among the celestial bodies in our solar system. It is the only moon with a thick, hazy atmosphere, and it's often compared to a primitive Earth.

According to NASA, the Moon turns red during an eclipse because of how the Sun's light interacts with Earth's atmosphere. As the Sun hits the atmosphere, shorter wavelengths of light such as the ...

The full moon blushes coppery red as stray bits of sunlight filter through Earth's atmosphere. During a partial lunar eclipse, Earth's shadow appears to take a bite of the moon.

Fireballs fall on the Earth every day—but the one that just streaked across the southeastern U.S. this week was unlike the ...