The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

Aurora lights on Uranus helped NASA’s Hubble Space Telescope measure the planet’s interior rotation rate, changing what astronomers know about how long a day is on the cold and windy world.

New observations have revealed that we were wrong about the length of a day on Uranus. According to the most precise ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

Astronomers have just revealed that a day on Uranus is longer than was previously thought, at 17 hours, 14 minutes and 52 seconds. This is 28 seconds longer than the previous estimate, which was made ...

The team used more than a decade’s worth of observations of Uranus’ unique aurorae taken with Hubble and refined the planet’s ...

Neptune's unique blue light. The planet's auroras are captured vividly in great detail by NASA's Webb telescope ...

Sir Patrick Moore charts the development of the telescope over four centuries and fasts forward to meet the astronaut who repaired the Hubble Space Telescope. Dr Chris Lintott visits some modern day ...

"We were surprised by the streams of light that were visible near the center of the galaxies, as nothing similar has been ...