Astronomers have discovered a planet two-thirds the size of earth and possibly the closest to our so...

The mysterious and sudden disappearance of a dusty disk of rocky debris around a nearby sun-like sta...

Astronomers using NASA's Hubble Space Telescope have found a puzzling arc of light behind an extreme...

A giant gas planet, spanning in the sky three times the size of our Moon and rising over the molten ...

A minor planet that was discovered by Chinese astronomers, has been named after a well-known late Ch...

Astronomers are gearing for one the rarest events in the Solar System: an alignment of Earth, Venus ...

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

Using a powerful telescope based in Hawaii, a team of Japanese astronomers has peered back through t...

The brittle, semiconducting element tellurium, rarely found on Earth, has been spotted in three star...