It covers nearly three-quarters of our planet but the ocean floor is less mapped than the moon, an astonishing fact driving a ...

For decades. researchers have theorized that resting beneath Callisto's pockmarked surface is a liquid saltwater ocean that spans the entire moon. After taking a closer look at data from 30 years ...

On Feb. 28, the one-day-old moon will pass in front of Mercury for observers in Australia and the south Pacific, and on March 1 the moon will make a close pass to Venus.

The first study on the Moon samples brought back by the Chinese Chang'e-6 mission show that the Moon's far side was just as ...

By comparison, Mercury, and Venus are moonless, Earth has one moon, and Mars has two. Uranus and Neptune have 28 and 16 known moons, respectively. Despite not technically being a planet anymore ...

But evidence for Callisto's subsurface ocean has remained inconclusive, as the moon has an intense ionosphere. Scientists thought this electrically conductive upper part of the moon's atmosphere ...

Liquid from the ocean, scientists believed, could be escaping through cracks in the moon's icy crust. Researchers at Dartmouth College set out to understand exactly how these geysers form ...

It covers nearly three-quarters of our planet but the ocean floor is less mapped than the Moon, an astonishing fact driving a ...