On Course to the Stars: James Webb Space Telescope Shaping Up for 2018 Launch

From ESA: “This image shows two polished test mirror segments being inspected by an optical engineer: one segment with the gold coating already applied, the other without. In the meantime, the coating of all 18 mirrors has been completed.” Photo Credit: NASA/C. Gunn

While the Hubble Space Telescope (HST) recently celebrated 25 years in […]

A Perfect Day for Sunbathing: A Year After Its Arrival, Rosetta Observes Comet 67P at Perihelion

From ESA: “This series of images of Comet 67P/Churyumov–Gerasimenko was captured by Rosetta’s OSIRIS narrow-angle camera on 12 August 2015, just a few hours before the comet reached the closest point to the Sun along its 6.5-year orbit, or perihelion.” The center image shows a significant outburst. Image Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

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New Study Traces Dark Near-Earth Asteroids Back to Oddball Asteroid Family

Time-lapse view of the asteroid Euphrosyne as seen by NASA's WISE spacecraft on May 17, 2010. WISE was later renamed to NEOWISE in 2013. Image Credit: NASA/JPL-Caltech

Time-lapse view of the asteroid Euphrosyne as seen by NASA’s WISE spacecraft on May 17, 2010. WISE was later renamed to NEOWISE in 2013. Image Credit: NASA/JPL-Caltech

Near-Earth asteroids, also known as Near Earth Objects (NEOs), are some of the best studied space rocks in the Solar System, primarily due to the fact that […]

Philae's First Science Results Highlight an Unexpected Cometary World

From ESA: "This well-lit image was acquired by Philae’s CIVA camera 4 at the final landing site Abydos, on the small lobe of Comet 67P/Churyumov–Gerasimenko, on 13 November 2014. The image shows one of the CONSERT antennas in the foreground, which seems to be in contact with the nucleus." CIVA's seven cameras captured images of Philae's position at its final landing site, Abydos. Image Credit: ESA/Rosetta/Philae/CIVA

From ESA: “Zooming in to a portion of the fractured cliff face imaged by CIVA camera 4 reveals brightness variations in the comet’s surface properties down to centimetre and millimetre scales. The dominant constituents are very dark conglomerates, likely made of organics. The brighter spots could represent mineral grains, perhaps even pointing to ice-rich […]

Sinkholes on Titan: New Study Shows How Hydrocarbon Lakes May Form by Earth-Like Erosion

Wider view of lakes and seas near Titan's north pole. Image Credit: NASA/JPL-Caltech/ASI/USGS

Colored mosaic of lakes near Titan’s north pole. Image Credit: NASA/JPL-Caltech/ASI/USGS

Saturn’s largest moon, Titan, has seas and lakes of liquid methane and ethane dotting its surface, but one question scientists have been trying to figure out is how the hollows in the ground, which hold the lakes, form to begin with. Now, a […]

NASA to Test Orion's European Service Module Starting This Summer

From ESA: "Proposal for a Multi-Purpose Crew Vehicle-Service Module (MPCV-SM)." Orion's European service module will fly on Exploration Mission-1 (EM-1) in late 2018. Image Credit: ESA-D. Ducros

From ESA: “Proposal for a Multi-Purpose Crew Vehicle-Service Module (MPCV-SM).” Orion’s European service module will fly on Exploration Mission-1 (EM-1) in late 2018. Image Credit: ESA-D. Ducros

NASA continues to ramp up its development of its newest crewed space vehicle and launch system, the Orion Multi-Purpose Crew Vehicle (MPCV), which will be powered by […]

Methane Discovered in Martian Meteorites: A Clue to Possible Life?

Methane has been discovered in some meteorites originating from Mars. Could it be a clue to life? Image Credit: Image by Michael Helfenbein

Methane has been discovered in some meteorites originating from Mars. Could it be a clue to life? Image Credit: Michael Helfenbein

The puzzle of methane on Mars has taken an interesting new twist: For the first time, the gas has been detected within Martian meteorites. The finding adds another layer to the ongoing controversy over […]

After 28 Weeks in Orbit, Multi-National Soyuz TMA-15M Crew Returns Safely to Earth

The Soyuz TMA-15M spacecraft is seen as it lands with Expedition 43 commander Terry Virts of NASA, cosmonaut Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos), and Italian astronaut Samantha Cristoforetti from European Space Agency (ESA) near the town of Zhezkazgan, Kazakhstan on Thursday, June 11, 2015. Virts, Shkaplerov, and Cristoforetti are returning […]

Impact Glass Discovered on Mars: How It Might Help In Search for Evidence of Past Life

Image from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument on the Mars Reconnaissance Orbiter, showing deposits of impact glass (green) in Alga Crater. Image Credit: NASA/JPL-Caltech/JHUAPL/Univ. of Arizona

For the first time, impact glass has been detected on the surface of Mars; the discovery not only provides new information about the formation […]

Top Ten US EVA Missions of All Time: No. 3—’Repackage Our Margin’

Astronaut Story Musgrave is positioned to replace components at the end of Endeavour’s Remote Manipulator System (RMS) mechanical arm on STS-61 in December 1993. Photo Credit: NASA

More than two decades have passed since one of the most spectacular EVA missions in U.S. history: the long-awaited first servicing of the Hubble Space Telescope (HST). […]