For decades, Uranus baffled scientists because it seemed to have no internal heat. Now, new computer modeling shows the ...

WASHINGTON (Reuters) - In 1781, German-born British astronomer William Herschel made Uranus the first planet discovered with the aid of a telescope. This frigid planet, our solar system's third ...

Imagine a massive celestial body colliding with Uranus at high speed; this impact could have 'overturned' Uranus, causing its rotation axis to tilt. Moreover, the colliding body would have to be ...

Amazing views of Jupiter over the years via the Hubble Space Telescope. The moons of Io, Ganymede and hazy Uranus can be ...

Ariel, one of Uranus' icy moons, may once have concealed a vast ocean more than 100 miles (170 kilometers) deep beneath its ...

Scientists are reconsidering old information about Uranus. NPR's Scott Simon explains the problem with photos taken of the planet 38 years ago. Opinion: Uranus was having a bad hair day. Hey, it was ...

Scientists have found that previously-known observations about Uranus were misleading. Uranus, the first planet discovered with a telescope, was closely observed in 1986 during a five-day flyby by ...

Since its categorization as a planet in the 18th century, Uranus has been an astounding target of observation for scientists. Once thought to only be a distant star, the planet has continued to amaze ...

A lone spacecraft's visit to Uranus may have left us with the complete wrong impression of the ice giant for nearly 40 years. The strange, sideways-rotating planet – the third largest in our solar ...