AmericaSpace Launch Countdown

Next Launch GPS IIF-8 on a Atlas V 401 rocket from Cape Canaveral AFB, FL
scheduled for:
29 Oct 14 17:21:00 GMT
29 Oct 14 13:21:00 EDT

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Saturn's Moon Mimas May Have an Underground Ocean—or Just a Weird Core

Mimas, a cold, icy, and tiny moon of Saturn, may have a liquid water ocean below its heavily cratered surface. Photo Credit: NASA/JPL/SSI

It wasn’t that long ago that Earth was thought to be the only place in the Solar System capable of having liquid water oceans, but now we know of several moons that [...]

Giant Cloud at Titan's South Pole Is Toxic and Freezing Cold

View from Cassini of the huge polar vortex cloud over Titan’s south pole. Image Credit: NASA/JPL-Caltech/ASI/University of Arizona/SSI/Leiden Observatory and SRON

Titan is the only moon in the Solar System known to have a dense atmosphere, and while similar to Earth’s atmosphere in some ways, such as being rich in nitrogen, it also holds [...]

It's Back! 'Mystery Island' in Titan Sea Makes Unexpected Reappearance

Three radar images, taken from April 2007 to August 2014, showing how the “mystery island” in Ligeia Mare has changed in appearance over time. Image Credit: NASA/JPL-Caltech/ASI/Cornell

The mystery of an unusual feature in one of Titan’s hydrocarbon seas, dubbed the “mystery island,” has taken an interesting turn. After apparently disappearing following its initial [...]

Curiosity ‘Lacks Science Focus’ as Cassini Gets ‘Excellent Rating’ Says Planetary Science Review Board

Panel urges more drilling less driving for NASA’s Curiosity Mars rover Curiosity accomplished historic first drilling into Martian rock at John Klein outcrop on Feb. 8, 2013, (Sol 182) and discovered a habitable zone, shown in this context mosaic view of the Yellowknife Bay basin taken on Jan. 26 (Sol 169). The robotic arm [...]

Rainfall on Titan May Create Propane Aquifers, Study Suggests

Illustration of a cross-section of Titan’s surface and near-subsurface, showing the surface lakes/seas, underground aquifers, clathrate layers, and icy crust. Image Credit: ESA/ATG medialab

Saturn’s largest moon, Titan, is a very alien yet eerily Earth-like world, with rain, rivers, lakes, and seas; seen from above, the landscape has a familiar look to it. But [...]

Space Dust Indicates Ancient Origin for Saturn's Rings

Mosaic image showing Saturn backlit by the Sun, one of the most beautiful photographs sent back by Cassini. Image Credit: NASA/JPL-Caltech/Space Science Institute

The origin of Saturn’s rings has been one of the most interesting puzzles in planetary science, and now new data from the Cassini spacecraft is helping to fill in the pieces, showing [...]

Behold Enceladus: Cassini Maps 101 Geysers on Tiny Saturn Moon

The geysers at the south pole of Enceladus, as seen by the Cassini spacecraft. Image Credit: NASA/JPL-Caltech/SSI

Saturn’s moon Enceladus is already known as one of the most intriguing places in our solar system, and now new findings from the Cassini spacecraft have been published, which will only add to our fascination with this little world.

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Titan's Hidden Ocean Might Be as Salty as the Dead Sea

Illustration of what Titan’s interior is thought to look like, with a rigid ice shell above the salty water ocean below. Image Credit: NASA/JPL-Caltech

Saturn’s moon Titan is known for its methane seas, lakes, and rivers; surprisingly Earth-like in appearance yet distinctly alien at the same time. But there is also evidence for another [...]

Cassini at Saturn: 10 Years of Amazing Planetary Science and More to Come

Mosaic image showing Saturn backlit by the Sun, one of the most beautiful and surreal photographs sent back by Cassini. Image Credit: NASA/JPL-Caltech/Space Science Institute

The Cassini mission to Saturn has been one of the most successful and exciting in all of space exploration history. That amazing spacecraft is now celebrating its 10th anniversary today [...]

Hazy Sunsets on Titan Provide Clues to Atmospheres on Alien Exoplanets

Artist’s conception of the Cassini spacecraft observing a sunset on Titan. Such studies can also help astronomers understand the atmospheres of exoplanets. Image Credit: NASA/JPL-Caltech

Saturn’s moon Titan is one of the murkiest places in the Solar System; its thick smog-like hydrocarbon haze in the upper atmosphere shrouds the entire moon, much like Venus’ perpetual cloud [...]