Neptune may have formed from material that originated much closer to the young Sun, challenging the long-standing belief that it and Uranus developed from the same reservoir of cosmic ingredients. New ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. An unsuspecting moon lurking in our solar system has a secret ocean of ...

New research on the Uranian moon Ariel suggests the icy world may be hiding a deep secret. Credit: NASA / JPL Scientists think one of Uranus' moons may once have had an ocean roughly 100 miles deep — ...

Carbon from deep grooves on Uranus’ moon Ariel? Ariel has carbon dioxide ice and other carbon deposits on its surface. How did they get there? The study last year suggested they originated from within ...

Ariel, Uranus's fourth largest moon, is thought to be made of equal parts rock and ice. A new computer model developed at the University of Texas Institute for Geophysics could be used to detect ...

Growing evidence suggests that a subsurface ocean lurks beneath the icy surface of Uranus' moon Ariel, but new research, published in Icarus, characterizes the possible evolution of this ocean, and ...

Carbon monoxide observations and chemical models favor a more oxygen-rich Neptune, offering clues to the ice giants’ different histories.

The moons that orbit Uranus are already known to have unusual characteristics: some are heavily cratered, others have tectonic features or a patchwork of ridges and cliffs. Using the Hubble space ...

Astronomers captured this image of a new moon of Uranus – labeled S/2023 U1 by astronomers – on November 4, 2023. The moon isn’t that big bright light. It’s the little dot to the left of the bright ...

Uranus, an ice giant planet and the seventh planet from the sun, may be warmer than previously thought. The third largest planet in the solar system — previously thought to be the coldest despite ...