Carl Sagan hit on the idea 40 years ago. Now, a team of scientists have discovered that a trifecta of gases may have warmed Mars enough for liquid water to gush.
The post Carl Sagan’s Theory Of Early Mars Warming Gets New Attention appeared first on Universe Today.
Mars’ atmosphere is about 100 times thinner than Earth’s, but there’s still a lot going on in that wispy, carbon dioxide Martian air. The MAVEN spacecraft recently took some exceptional images of Mars using its Imaging UltraViolet Spectrograph (IUVS), revealing dynamic and previously invisible subtleties. MAVEN took the first-ever images of nightglow on Mars. You […]
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Host: Fraser Cain (@fcain) Special Guest: Paul Geithner, Deputy Project Manager – Technical for the James Webb Space Telescope (JWST) at NASA’s Goddard Space Flight Center. Guests: Kimberly Cartier ( KimberlyCartier.org / @AstroKimCartier ) Paul M. Sutter (pmsutter.com / @PaulMattSutter) Nicole Gugliucci (cosmoquest.org / @noisyastronomer) Their stories this week: MAVEN’s One Year Anniversary Giant plasma […]
The post Weekly Space Hangout – October 7, 2016: Paul Geithner of the JWST appeared first on Universe Today.
NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) orbiter mission has determined that ancient Mars suffered drastic climate change and lost its thick atmosphere and surface bodies of potentially life giving liquid water because it lost tremendous quantities of gas to space via stripping by the solar wind, based on new findings that were announced today, […]
Martian auroras will never best the visual splendor of those we see on Earth, but have no doubt. The Red Planet still has what it takes to throw an auroral bash. Witness the latest news from NASA’s MAVEN atmospheric probe. (…)Read the rest of Does the Red Planet Have Green Auroras? (596 words) © Bob King […]
Just a day after skywatchers at mid- to upper-latitudes around the world were treated to a particularly energetic display of auroras on the night of March 17 as a result of an intense geomagnetic storm, researchers announced findings from NASA’s MAVEN mission of auroral action observed on Mars – although in energetic ultraviolet wavelengths rather than visible light. […]
It seems a lot of the space stories of this year involve spacecraft making journeys: bouncing across a comet, or making their way to Mars. Private companies also figure prominently, both in terms of successes and prominent failures. These are Universe Today’s picks for the top space stories of the year. Disagree? Think we forgot […]
Host: Fraser Cain (@fcain) Guests: Morgan Rehnberg (cosmicchatter.org / @cosmic_chatter) Ramin Skibba (@raminskibba) Alessondra Springmann (@sondy) (…)Read the rest of Weekly Space Hangout – Dec. 19, 2014: Methane on Mars! (296 words) © Fraser for Universe Today, 2014. | Permalink | No comment | Post tags: black hole, cats, cluster, Curiosity, Dark Matter, galaxy, India, […]
Following the catastrophic Oct. 28 failure of Orbital Sciences Corporation Antares rocket on a critical resupply mission to the space station for NASA, the company is seeking to quickly make up the loss to NASA by announcing the selection of the venerable Atlas V rocket built by United Launch Alliance to launch Orbital’s next Cygnus […]
Feeling lucky? Events such as the Comet Siding Spring approach by Mars in October only happen about once every eight million years, according to NASA. And after we were treated to spectacular views from the agency’s spacecraft (see Curiosity and Opportunity and MAVEN, for example), we now have fresh pictures this month from an Indian […]