Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

By Will Dunham WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet ...

Mercury has long been cast as the solar system’s burnt-out rock, a relic too small and too close to the Sun to hold many surprises. That caricature is now collapsing. New analysis of NASA’s MESSENGER ...

A global team of astronomers, led by the University of Warwick, have used a European Space Agency (ESA) telescope to discover ...

An inside-out planetary system around the star LHS 1903 is turning everything that astronomers know about planet formation upside down.

SHOCKED astronomers have spotted a “rogue” planet that defies historic theories. A unique “inside out” planetary system ...

In our Solar System, the inner planets (Mercury to Mars) are rocky, and the outer planets (Jupiter to Neptune) are gaseous. This planetary pattern – rock then gas - is consistently observed acro ...

Astronomers have discovered a surprising planetary system that does not follow the usual rules of how planets form. The ...

University of Birmingham astronomers joined a global team of scientists to discover a distant planetary system that turns scientific understanding of planet formation upside down. In the Solar System, ...