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AmericaSpace Launch Countdown

Next Launch MUOS-3 on a Atlas V 551 rocket from Cape Canaveral AFB, FL
scheduled for:
21 Jan 15 1:04:00 GMT
20 Jan 15 20:04:00 EST

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Water on Vesta? Gullies Suggest Wet Debris Flows in the Past, Study Finds

Image of curved gullies and fan-shaped deposits in Cornelia crater on Vesta. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn spacecraft is now very close to the dwarf planet Ceres, but there are some interesting new findings from its previous visit to the asteroid Vesta. Curved gullies on its surface suggest that small amounts of water may […]

Cool New Technology Will Allow Scientists to Work Virtually on Mars in 3-D

A screen view from OnSight, showing how scientists can meet together in a virtual 3-D simulation on the Martian surface. Such technology will allow scientists to better study features of interest and plan rover or lander activities. Image Credit: NASA/JPL-Caltech

The rover and lander missions on Mars have been cool enough with their high-tech […]

Has Curiosity Found Evidence for Ancient Microbial Life on Mars? Maybe, Says Noted Geobiologist

Curiosity image from Yellowknife Bay, where the potential microbial mat features were first seen in sandstone rocks. Gillespie Lake Member is the series of flat rocks in the central-left area of the image. Image Credit: NASA/JPL-Caltech/MSSS

There is a report about Mars which has been getting a lot of attention the past few weeks (in […]

Two New Exoplanet Findings Bring Us Closer to Discovering Other Earth-Like Worlds

Artist’s conception of a super-Earth ocean world, with another gas giant planet rising over the horizon. Image Credit: David A. Aguilar/CfA

When it comes to exoplanets, the most exciting for many people are, of course, the ones which may be the most Earth-like, since these are regarded as the most likely to possibly support some form […]

Strong Winds Explain Titan's Immense Dunes, According to New Study

Radar image of long lines of dunes on Titan. They can be up to 300 feet tall and hundreds of miles long. Image Credit: NASA/JPL–Caltech/ASI/ESA and USGS/ESA

Saturn’s largest moon Titan is one of the most Earth-like places in the Solar System, as least in terms of appearances, with its seas, lakes, and rivers […]

Dawn Spacecraft Takes Its Best-Yet Image of Dwarf Planet Ceres

The best image of dwarf planet Ceres obtained so far by the Dawn spacecraft, from 740,000 miles (1.2 million kilometers) away. Images will get much better as the spacecraft approaches Ceres over the next few months. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn spacecraft continues to make its way closer to a world which still hasn’t […]

Super-Hot Venus May Have Heavy Metal Frost

Radar image of bright areas and dark patches in a swath of terrain in Ovda Regio going from lower to higher elevations. Image Credit: The Geological Society of America/Elise Harrington, Simon Fraser Univ. (LPI undergraduate intern)/Allan Treiman, LPI.

Venus is one of the most inhospitable places in the Solar System, with temperatures hot enough […]

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 […]