Enceladus' Water Geysers May Be 'Curtain Eruptions' According to New Study

The water vapor jets on Enceladus are now thought to mostly be more like diffuse “curtains” rather than separate plumes. Image Credit: NASA/JPL-Caltech/SSI/PSI

The water vapor geysers on Saturn’s moon Enceladus are one of the most fascinating phenomena in the Solar System; the jets spray far out into space in a dazzling display unseen […]

'Monster Flight': 25 Years Since Launch of Hubble (Part 1)

The moment of deployment of the Hubble Space Telescope (HST), as seen from the IMAX Cargo Bay Camera (ICBC). Photo Credit: NASA

“If there were ever two missions that were completely opposite in terms of the public attention that was given to them,” astronaut Loren Shriver once said, “it would be my first and […]

Rosetta and Philae Capture First Detailed Magnetic Measurements of a Comet Nucleus

Comet 67P/C-G’s activity! This stunning montage of 18 images from Rosetta’s navcam camera shows off the comet’s activity from many different angles. It covers the time period between 31 January (top left) and 25 March (bottom right), 2015, when the spacecraft was at distances of about 30 to 100 km from the comet. The […]

Comet Debris Causes Significant Navigation Issues During Rosetta’s Latest Close Flyby

This stunning scene was created from two NAVCAM frames acquired at 19.9 km from the comet centre on 28 March. The scale is about 1.7 m/pixel and the image measures 3.1 x 1.7 km. The image has been adjusted for intensity and contrast, and the vignetting has been fixed. Credits: ESA/Rosetta/NAVCAM – CC BY-SA […]

Ongoing Research and New Crew Arrival Highlight Busy Week on Orbit for Expedition 43

Scott Kelly, Mikhail Kornienko, and Gennady Padalka joined their Expedition 43 crewmates Terry Virts, Anton Shkaplerov, and Samantha Cristoforetti in the Zvezda service module for a crew greeting ceremony. Photo: NASA

SPACE STATION WEEKLY UPDATE March 23 – March 29, 2015 — The International Space Station (ISS) Expedition 43 crew members kept busy last week, […]

Rosetta Makes First Detection of Cometary Molecular Nitrogen, Seeks Signals From Philae Lander

Rosetta has made the first detection of molecular nitrogen at a comet. The results provide clues about the temperature environment in which Comet 67P/Churyumov–Gerasimenko formed. Credit: ESA/ATG medialab; comet: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0

Rosetta, humankind’s first spacecraft to orbit a comet, has now made the first detection of molecular nitrogen (N2) at […]

Ambitious One-Year Mission Counting Down to Friday Launch (Part 2)

Scott Kelly participates in a Soyuz spacecraft training session, ahead of his scheduled 27/28 March launch with Gennadi Padalka and Mikhail Kornienko. Photo Credit: NASA

Twenty-four hours now remain before Soyuz TMA-16M is scheduled to rocket toward the International Space Station (ISS), carrying Russian cosmonauts Gennadi Padalka and Mikhail Kornienko and U.S. astronaut Scott […]

Ongoing Research and Preparations for New Crew Arrival Highlight Busy Week for Expedition 43

Expedition 43 commander and NASA astronaut Terry Virts working inside the Cupola last week. Photo Credit: NASA / @AstroTerry via Twitter

SPACE STATION WEEKLY UPDATE March 16 – March 22, 2015 — Over the last two weeks, the International Space Station (ISS) saw the end of one expedition and the beginning of another when […]

Hubble Shows Evidence of Large Underground Ocean on Ganymede

From HubbleSite: “NASA’s Hubble Space Telescope observed a pair of auroral belts encircling the Jovian moon Ganymede. The belts were observed in ultraviolet light by the Space Telescope Imaging Spectrograph and are colored blue in this illustration. They are overlaid on a visible-light image of Ganymede taken by NASA’s Galileo orbiter. The locations of […]

Cassini Finds Evidence for Hydrothermal Activity on Saturn's Moon Enceladus

Cutaway view depicting the interior of Enceladus. Water, salts, organics, and methane make their way from the hydrothermal vents on the ocean bottom to the surface through cracks in the icy crust, erupting as geysers. Image Credit: NASA/JPL

The deep oceans on Earth are teeming with life, despite the cold and darkness, thanks to […]