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 […]

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 […]

'Would You Believe M=1?' 50 Years Since the High-Flight of Gemini XI (Part 1)

Pete Conrad (foreground) and Dick Gordon, with dark EVA visor, are pictured aboard Gemini IX. Both men later journeyed to the Moon together on Apollo 12. Photo Credit: NASA

Fifty years ago, this month, Pete Conrad and Dick Gordon’s Gemini XI mission would carry them to a peak 850 miles (1,370 km), which remains the highest altitude of any Earth-orbital mission. Only the Apollo lunar flights traveled higher on their expeditions to the Moon. Photo Credit: NASA

Not all astronauts get on with […]

OSIRIS-REx Launches on Multi-Year Mission to Asteroid Bennu

Precisely on the opening of tonight's 115-minute "launch window", the Atlas V 411 took flight. Photo Credit: Michael Galindo/AmericaSpace

Precisely on the opening of tonight’s 115-minute “launch window,” the Atlas V 411 took flight. Photo Credit: Michael Galindo/AmericaSpace

Just a half-hour before the Sun set over the Space Coast on Thursday, 8 September, United Launch Alliance (ULA) has successfully delivered NASA’s Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft on its […]

OSIRIS-REx Stands Ready for Date With Asteroid Bennu (Part 2)

OSIRIS-REx is revealed after its protective cover is removed at NASA Kennedy's Payload Processing Hazardous Facility at NASA Kennedy.

An artist’s rendering of OSIRIS-REx at asteroid 101955 Bennu. Its solar arrays will be configured in a “Y-wing” shape to avoid dust accumulation. Image Credit: NASA

Tomorrow evening, if all goes well, a spacecraft destined to visit, retrieve, and return samples from a near-pristine “carbonaceous” asteroid will roar aloft atop a unique “flying-sideways” rocket […]