Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Their observations of a faint, cool M-dwarf star called LHS 1903 revealed a system with a rocky world at its outer edge. LHS 1903 is an ancient star, around seven billion years old, and only has about ...

A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.

We know that our Solar System is not the blueprint for all planetary systems out there. There are gas giant planets orbiting ...

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific expectations -- and suggests these faraway worlds formed in a manner never seen ...

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

A team of international astronomers has announced the discovery of an 'inside-out' planetary system that defies the established understanding of planetary patterns.

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 ...

Look west just after sunset from this weekend for a chance to see some of six planets, though the best views will be had ...

Stargazers, get ready for a celestial show! A planetary alignment featuring six planets will be visible in late February and ...