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The asteroid's strange orbit may be the work of the gravity of an unknown planet.

In a new study, scientists have calculated that there may be 36 active intelligent civilizations in the Milky Way.

For the first time in 2,000 years, tourists will have access to the ancient city of Hegra in Saudi Arabia.

Astronomers have discovered that invisible structures generated by gravitational interactions in the Solar System have created a "Space Superhighway" network.

Our planet's history includes at least several hundred global magnetic reversals, in which the north and south magnetic poles have swapped places.

This is a real danger that we can face if we are not properly protected against space objects that are on a collision course with Earth.

A forest that existed about 290 million years ago was found in Paraná, Brazil.

But first, the company promises to store eggs and sperm in orbit and perform the first extraterrestrial artificial insemination.