Earth's largest waterfall, Denmark Strait cataract, is located in Arctic waters between Iceland and Greenland and is roughly ...

For 37 years in a searing California desert, runners from across the globe have embarked on a 135-mile race through one of ...

NASA has discovered an interstellar comet that's wandered into our backyard.

Although the Earth’s distance from the Sun does not affect the seasons, aphelion does influence the length of summer in the Northern Hemisphere.

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the object with the Atlas telescope in Chile earlier this week, and has confirmed it was a ...

The sun's ascent above Earth's horizon is observed from the International Space Station, marking the approaching peak of ...

Astronomers are reporting the detection of a large object entering our solar system, and it is causing quite the stir in the scientific community.

CAPE CANAVERAL, Fla. (AP) — NASA has discovered an interstellar comet that’s wandered into our backyard. The space agency spotted the quick-moving object with the Atlas telescope in Chile ...

New interstellar comet will keep a safe distance from Earth, NASA says NASA has discovered an interstellar comet that's wandered into our backyard ...