Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

It’s been a big year for Uranus. We’ve learned quite a bit ... that struck the planet would have been at least twice the size of Earth. The collision likely happened very early on in Uranus ...

leading to a very long winter that lasts 21 Earth years. Uranus is approaching a critical moment in its orbit around the sun. In 2028, the planet will reach its next solstice and the north pole ...

These immiscible layers would explain why neither Uranus nor Neptune has a magnetic field like Earth's. That was one ... Planets about the size of Uranus and Neptune—so-called sub-Neptune ...

Cold, dark and windswept - despite its calm appearance, the ice giant Uranus is a planet of extremes. Orbiting the Sun at an average distance of 2.9 billion kilometres - more than 19 times further out ...

2024 — When Voyager 2 flew by Uranus and Neptune 40 years ago, astronomers were surprised that it detected no global dipole magnetic fields, like Earth's. The explanation: the ice giants are ...