'Ocean Worlds Exploration Program': New Budget Proposal Calls for Missions to Europa, Enceladus and Titan

Artist’s conception of Europa’s interior, with water rising through cracks in the surface, depositing salts similar to sea salt on Earth. The ocean below may be a habitable environment for some kind of life. Image Credit: NASA/JPL-Caltech

The exploration of the outer Solar System has revealed a plethora of amazing worlds, the likes of which […]

New Horizons Mission Returns First Images of Pluto's Smallest Known Moons Kerberos and Styx

NASA’s New Horizons spacecraft has just returned the first long-range images of Kerberos and Styx, the two smallest moons of Pluto. Each animation consists of five 10-second frames which were taken with the onboard LORRI camera between April 25 and May 1At left is the initial set of raw images, while at the center […]

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 […]

Discovery of Salty Aquifer Beneath Antarctica May Have Implications for Life on Mars

The SkyTEM sensor suspended beneath a helicopter over Blood Falls and the Taylor Glacier in Antarctica. Photo Credit: L. Jansan

Scientists have discovered a vast network of salty aquifers beneath the surface of Antarctica, thanks to an airborne imaging system used there for the first time. The finding may have interesting implications for the […]

Shedding New Light On the Solar System: Celebrating 25 Years of Hubble Science (Part 2)

A series of images of Uranus and Neptune that were taken with the Hubble Space Telescope. The top row reveals the ice giant planets in natural colors, showing the planets as they would appear if we could see them through a telescope. The images at the bottom were taken with certain types of different […]

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 […]

'Life Not As We Know It': New Research Shows How Exotic Biology May Be Possible on Titan

Illustration of methane rainfall and lake on Titan. New research suggests exotic forms of life could be possible in this alien environment. Image Credit: Mark Garlick (Space-art.co.uk)/APOD

The search for life elsewhere has long focused on what we are most familiar with on Earth—in other words, “life as we know it,” or organisms which […]

Scientists Debate How to Search for Life on Europa in New Mission

Jupiter’s ice-covered moon Europa hides a water ocean beneath its surface. A return mission is now planned to help search for evidence of life there. Photo Credit: NASA/JPL

Jupiter’s moon Europa, with its subsurface ocean, is considered by many to be the best place in the Solar System to search for extraterrestrial life. With NASA […]