Geysers on Europa? Hubble Space Telescope Finds More Evidence for Water Vapor Plumes

Composite image showing the possible water vapor plumes near the south pole of Europa, at about the 7 o'clock position. The image of Europa, from the Galileo and Voyager missions, is superimposed on the Hubble data. Image Credit: NASA/ESA/W. Sparks (STScI)/USGS Astrogeology Science Center

Composite image showing the possible water vapor plumes near the south pole of Europa, at about the 7 o’clock position. The image of Europa, from the Galileo and Voyager missions, is superimposed on the Hubble data. Image Credit: NASA/ESA/W. Sparks (STScI)/USGS Astrogeology Science Center

Intriguing new findings about Jupiter’s moon Europa were announced today […]

Record-Breaker for Women Astronauts: 20 Years Since STS-79 (Part 2)

For the first time on STS-79, a shuttle crew saw Mir in its complete configuration, with six research and habitation modules. It had been Shannon Lucid’s home for six months and would be John Blaha’s home for the next four. Photo Credit: NASA

A glass half-full, or half-empty, was Bill Readdy’s perspective on the […]

Orion, SLS Development Continues to Take Shape for Inaugural Late 2018 Launch

An SLS Block 1 launch vehicle hoists an Orion spacecraft from KSC's Pad 39B, with the VAB in the distance. Image Credit: NASA/MSFC

An SLS Block 1 launch vehicle hoists an Orion spacecraft from KSC’s Pad 39B, with the VAB in the distance. Image Credit: NASA/MSFC

It seems as if we’re galloping toward the end of 2016, and we’re getting closer by the day to the “dawn” of a new U.S. launch vehicle and human-rated spacecraft. […]

Changing the Guard: 20 Years Since STS-79 (Part 1)

The STS-79 mission patch, highlighting its original EVA component. Image Credit: NASA

World record holder Shannon Lucid watches the growth of plants in a Russian greenhouse aboard Mir. This photograph was taken in September 1996, shortly after the crew of STS-79, including Lucid’s replacement, John Blaha, arrived to bring her home. Photo Credit: NASA

Twenty years ago, this month, an American national record-breaker circled high above Earth, aboard […]

'To Make Sure We Didn't Make the News': 25 Years Since STS-48 (Part 2)

Originally scheduled to be the first shuttle mission to land at the Kennedy Space Center (KSC) in the hours of darkness, STS-48 was ultimately diverted to Edwards Air Force Base, Calif. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Originally scheduled to be the first shuttle mission to land at the Kennedy Space Center (KSC) in the hours of darkness, STS-48 was ultimately diverted to Edwards Air Force Base, Calif. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Late in September 2011, the skies above the Pacific Ocean were illuminated by an astonishing—though not unexpected—fire […]

'Gentlemen's Hours': 25 Years Since STS-48 (Part 1)

The Upper Atmosphere Research Satellite (UARS) is readied for deployment by Discovery's Remote Manipulator System (RMS) mechanical arm, early in the STS-48 mission. Photo Credit: NASA

The Upper Atmosphere Research Satellite (UARS) is readied for deployment by Discovery’s Remote Manipulator System (RMS) mechanical arm, early in the STS-48 mission. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Late in September 2011, the skies above the Pacific Ocean were illuminated by an astonishing, though not unexpected, fire show. NASA’s 13,000-pound (5,900-kg) Upper Atmosphere […]

Enigmatic Pluto Emits X-Rays and 'Spray-Paints' Its Largest Moon, New Research Shows

For the first time, x-rays have been detected around Pluto, as seen by Chandra (inset image). Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Chandra X-Ray Center

For the first time, x-rays have been detected around Pluto, as seen by Chandra (inset image). Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Chandra X-Ray Center

It has been 14 months since the New Horizons spacecraft flew past Pluto and its moons, but data still continues to come in, and new discoveries are […]

Commercial Earth-Watcher Ready for Friday Morning Launch

WorldView-4's 3.4-foot-diameter (1.1-meter) telescope assembly is clearly visible in this view at Vandenberg Air Force Base, Calif., after the satellite had bee uncrated on 28 July. Photo Credit: Lockheed Martin

DigitalGlobe’s WorldView-4 satellite is readied for encapsulation in the Atlas V payload fairing on 8 September 2016. Photo Credit: Lockheed Martin

Twenty-five months after the WorldView-3 commercial Earth-imaging satellite was launched into orbit, its near-twin is set to rocket out of Vandenberg Air Force Base, Calif., no sooner than Friday, 16 September, atop a […]

Curiosity Rover Examines Spectacular Layered Buttes, Closes In on Mount Sharp

Curiosity near Murray Buttes, on first approach. Image Credit: NASA/JPL-Caltech/MSSS/James Sorenson

Curiosity near Murray Buttes, on first approach. Panoramic image processing by James Sorenson. Image Credit: NASA/JPL-Caltech/MSSS/James Sorenson

Mars has often been compared to deserts on Earth, and for good reason: It is pretty much a barren landscape with a lot of sand and rocks everywhere. Sometimes the similarities can be quite striking, and the […]

A Jewel in the Rough: Juno Returns First Rich Scientific Harvest From Jupiter

From NASA: "NASA's Juno spacecraft captured this view as it closed in on Jupiter's north pole, about two hours before closest approach on Aug. 27, 2016." Image Credit: NASA/JPL-Caltech/SwRI/MSSS

From NASA: “NASA’s Juno spacecraft captured this view as it closed in on Jupiter’s north pole, about two hours before closest approach on Aug. 27, 2016.” Image Credit: NASA/JPL-Caltech/SwRI/MSSS

Jupiter, with its complex layers of clouds and storms, is revealing itself to be a multifaceted jewel of a planet. Over forty years after […]