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 ...

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: ...

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

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

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 ...

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