Muddy Mars: New Evidence for Liquid Water Flows Within Past Million Years

Illustration of debris flows inside Istok crater on Mars, which have provided evidence of large amounts of flowing water and mud in the past. The flows are very similar to ones on Earth in Arctic regions such as Iceland. Image Credit: Nature Communications

The fact that Mars used to have large amounts of liquid […]

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 […]

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 […]

Early Mars May Have Been Cold and Icy Rather Than Warm, According to New Study

Conceptual image of the two competing warm or cold models of early Mars. Image Credit: Robin D. Wordsworth

Conceptual image of the two competing warm and cold models of early Mars. Image Credit: Robin D. Wordsworth

The debate over whether Mars used to be warmer and wetter or colder and wetter earlier in its history has been a long and contentious one. Now, a new study suggests it may be the latter, that […]

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 […]

NASA Begins Testing of InSight Mars Lander for Launch in 2016

Testing of the solar arrays on the InSight lander at Lockheed Martin Space Systems in Denver. Photo Credit: NASA/JPL-Caltech/Lockheed Martin

Testing of the solar arrays on the InSight lander at Lockheed Martin Space Systems in Denver. Photo Credit: NASA/JPL-Caltech/Lockheed Martin

While Curiosity and Opportunity are still busy roving Mars, NASA has begun testing its next lander, InSight, scheduled to launch in March 2016. It will be the first mission devoted to studying the interior of […]

Researchers Develop New Technique to Search for Chemical Evidence of Life on Mars

Despite decades of searching, definitive evidence for life on Mars, past or present, has still remained elusive and controversial. Confirmation of such a finding would need to be thoroughly tested and documented, and now researchers at the University of Kansas have developed a new technique that they hope would help to do just that, […]

Dark Material in Fractures on Europa's Surface Is Sea Salt, New Research Suggests

The darker-colored material within the fractures and elsewhere on Europa’s surface might be sea salt brought up from the ocean below. Image Credit: NASA/JPL/Ted Stryk

For over a decade, scientists have been curious about the long fractures on Europa’s icy surface and the darker-colored material they contain, as well as other relatively young geological […]

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 […]

Astronomers Find First Evidence of Possible Volcanic Activity On a Super-Earth Exoplanet

Artist’s conception of super-Earth exoplanet 55 Cancri e, before and after volcanic activity on its day side. The surface may be partially molten. Image Credit: NASA/JPL-Caltech/R. Hurt

Discovering new exoplanets has become rather routine in the last few years, but determining just what conditions exist on any of them is naturally more difficult, since […]