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 [...]

MESSENGER Takes First Images of Ice Near Mercury's North Pole

Wide-Angle Camera (WAC) image of Kandinsky crater, near Mercury’s north pole, which contains water ice. The original broadband image is on the left (outlined in yellow), and the brightness and contrast-enhanced version is on the right. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

The Solar System is full of surprises. [...]

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 [...]

Plate Tectonics May Increase Chances for Life on Europa

Europa, with its subsurface ocean, and now evidence for plate tectonics, is a primary goal of exploration in the search for alien life. Processed image copyright: Ted Stryk. Image Credit: NASA/JPL-Caltech/Ted Stryk

Jupiter’s moon Europa is a fascinating little world, but particularly so for one reason: water. It’s deep alien ocean underneath the surface [...]

ISEE-3 Makes Lunar Flyby, Waves 'Goodbye' Days Before Launch Anniversary

From the ISEE-3 Reboot Project: “An artist’s rendering depicts the satellite ISEE-3/ICE during its planned lunar fly-by in August 2014.” This past weekend, ISEE-3 made its flyby and waved “goodbye” to the Earth-Moon system. Image Credit: Mark Maxwell/ISEE-3 Reboot Project

Only a few days after one of its successors approached a comet in deep [...]

Propulsion Issues Put Plans for 'Vintage' ISEE-3 Spacecraft on Ice

From the ISEE-3 Reboot Project: “An artist’s rendering depicts the satellite ISEE-3/ICE during its planned lunar fly-by in August 2014.” Image Credit: Mark Maxwell/ISEE-3 Reboot Project

While the spacecraft may have been frozen in time, the excitement over its reawakening was brand new.

But the effort to re-purpose the long-dormant International Sun-Earth Explorer-3 (ISEE-3) [...]

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 [...]

New Study Shows How Salts Could Make Liquid Water on Mars

The Phoenix lander was the first mission to land near the Martian north pole. Was it also the first to see evidence of liquid water on Mars? Image Credit: NASA/ JPL-Caltech/University of Arizona/Texas A&M University

The search for evidence of water on Mars, past or present, has been one of the driving forces behind [...]

NASA Gives Citizen Scientists 'Keys' to Long-Decommissioned ISEE-3 Spacecraft

This diagram shows the torturous path the ISEE-3 (later ICE) spacecraft made over its 19-year operational life. NASA recently signed an agreement with the ISEE-3 Reboot Project team, who are working on breathing new life into the defunct spacecraft. Image Credit: NASA

On Wednesday, May 21, it was announced that NASA gave a group [...]

Solar System's Largest Moon Ganymede May Have 'Club Sandwich' Oceans

Illustration depicting the “club sandwich” layers of oceans and ice in Ganymede’s interior. Image Credit: NASA / JPL-Caltech

Europa and Enceladus, for good reason, have captured the attention and imagination of those searching for evidence of life elsewhere in our Solar System. Both moons are now thought to have subsurface oceans with conditions where [...]