Astronomers claim to have discovered four pairs of stars that orbit each other in less than four hou...

Scientists have discovered what they say is the oldest and largest meteorite crater on Earth which i...

Scientists claim to have found clinching evidence that suggest Mars' interior holds vast reservoirs ...

A plan to build the biggest land-based optical telescope in the world has cleared an important hurdl...

An experimental solar-powered airplane took off from Switzerland on its first transcontinental fligh...

Astronomers have discovered what they claim is a "hidden planet" outside our solar system, using a 1...

The telescope will be 10 times more powerful than the world's largest Hubble telescope and will be f...

The country has installed and tested the AST3-1 Antarctic Survey Telescope in Antarctica, the larges...

The world's most traveled spaceship has arrived at its final destination - the Smithsonian's Nationa...