An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Astronomers studying a dim red dwarf star called LHS 1903 have found a four-planet system with an architecture that defies the standard rules of how rocky worlds take shape. The outermost planet in ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A rocky planet orbits LHS ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

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

New research using NASA’s James Webb Space Telescope examines the maximum sizes of gas giant exoplanets, measuring chemical compositions and formation processes in the HR 8799 system.

Deep in the older, denser reaches of the Milky Way, there is a red dwarf star that shouldn’t exist — or at least, its family ...

A "domino effect" may occur in star systems whereby newly formed planets close to a star help shepherd dust and gas to create more planets farther out in the system. Astronomers using a mountain ...

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Add Yahoo as a preferred source to see more of our stories on Google. Artist impression of the planetary system with four planets,around a small red star,called LHS1903. Caption: Astronomers have long ...

Planets may begin forming much earlier than scientists once believed during the final stages of a star s birth, not afterward. This bold new model, backed by simulations from researchers at SwRI, ...