Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

Planet locations include Jewry Wall, Leicester Cathedral, Haymarket Shopping Centre, Phoenix, Curve, and Leicester Museum & Art Gallery. The trail launches with a public community celebration on 30 ...

An international research team announces the discovery of a new exoplanet orbiting a binary star system. Named HD 143811 b, ...

Scientists say a nearby red dwarf star hosts a planetary lineup that looks like a mirror image of our own solar system, with ...

Artist impression of the planetary system with four planets,around a small red star,called LHS1903. Caption: Astronomers have long thought solar systems follow a simple pattern similar to our own: ...

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

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

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...

A composite image showing the five dwarf planets recognized by the International Astronomical Union, plus the newly discovered trans-Neptunian object 2017 OF201. The TNO is potentially large enough to ...