On Aug. 8, 1977, the Salyut 5 space station fell out of space and burned up in Earth's atmosphere. Salyut 5 was a Soviet ...

A massive comet trail may have caused climate upheaval on Earth more than 12,000 years ago, sparking the Younger Dryas.

Earth's atmosphere transports tiny forms of cellular life, such as fungal spores, pollen, bacteria, and viruses. On their ...

Earth's atmosphere is a mixture of gases that are held in place by gravity. By far the largest component is nitrogen, which makes up nearly 80% of the atmosphere.

On average, Earth rotates once relative to distant stars, a sidereal day, in about 23 hours, 56 minutes, and 4.1 seconds.

Scientists have been left baffled by a mysterious change in Earth's rotation, warning that it could lead to catastrophic ...

Earth will witness another shorter day on August 5 after having two such days in the past month. Human beings cannot do anything about it, but they could be on the receiving end of a catastrophe if ...

The Red Planet likely had an atmosphere similar to Earth in its distant past. However, now the air there is extremely thin, just 1/100th the atmosphere pressure of Earth.

Kosmos 482 is expected to re-enter Earth's atmosphere some time within the next week. (NASA) Fifty years ago, the former Soviet Union launched a probe to Venus. Except it never made it.

CBC News · Posted: Oct 12, 2012 4:17 PM EDT | Last Updated: October 13, 2012 The last time a fresh Martian rock fell to Earth was in 1962 (DARRYL PITT/Associated Press) ...