Solar System

Why Doesn’t Earth Have More Water?

Water, water everywhere... Coleridge's shipbound ancient mariners were plagued by a lack of water while surrounded by a sea of…

12 years ago

Fifth Moon Found Around Pluto

This just in! Astronomers working with the Hubble Space Telescope have spotted a new moon around distant Pluto, bringing the…

12 years ago

The Return of the Rings!

Now that Cassini has gone off on a new trajectory taking it above and below the equatorial plane of Saturn,…

12 years ago

An Epic Crater Called Odysseus

On June 28 NASA's Cassini spacecraft passed by Tethys, a 1,062-kilometer (662-mile) -wide moon of Saturn that's made almost entirely…

13 years ago

Titan’s Tides Suggest a Subsurface Sea

Saturn's hazy Titan is now on the short list of moons that likely harbor a subsurface ocean of water, based…

13 years ago

How to Measure a Hot Jupiter

An international team of astronomers has figured out a way to determine details of an exoplanet's atmosphere from 50 light-years…

13 years ago

New Mineral Found in Meteorite is From Solar System’s Beginnings

Scientists have discovered a new mineral embedded in a meteorite that fell to Earth over 40 years ago, and it…

13 years ago

Mars Has Watery Insides, Just Like Earth

Researchers from the Carnegie Institution have found that water is present in surprisingly Earthlike amounts within Mars' mantle, based on…

13 years ago

Voyager 1 Breaking Through the Borders of the Solar System

After almost 35 years traveling at over 35,000 mph, the venerable (and still operational!) Voyager 1 spacecraft is truly breaking…

13 years ago

Mickey Mouse on Mercury?

This collection of craters, shaped not unlike the iconic head of a certain cartoon mouse, was imaged by NASA's MESSENGER…

13 years ago