Sean Solomon, PI for NASA's MESSENGER mission, has been selected to receive the National Medal of Science. Credit: NASA
Solomon is now the Director of Columbia University’s Lamont-Doherty Earth Observatory, and serves as principal investigator for NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) mission. MESSENGER is the first spacecraft to orbit Mercury and is currently completing a second extended mission at the Solar System’s inner-most planet. Additional NASA missions ...October 13, 2014 / Written by: Aaron Gronstal
Please join us in welcoming the new members of the NASA Astrobiology Institute (NAI), winners of the CAN7 competition: the SETI Institute in Mountain View, CA; NASA’s Jet Propulsion Laboratory in Pasadena, CA; the University of California, Riverside; NASA’s Ames Research Center in Mountain View, CA; NASA’s Goddard Space Flight Center in Greenbelt, MD; the University of Montana, Missoula; and the University of Colorado, Boulder.
Each interdisciplinary team will bring unique capabilities and expertise to NASA’s Astrobiology Program, and the collaborative structure of the NAI will provide for productive interactions not only across these teams, but ...October 7, 2014 / Written by: Daniella Scalice
NASA has awarded five-year grants totaling almost $50 million to seven research teams nationwide to study the origins, evolution, distribution, and future of life in the universe.
“With the Curiosity rover characterizing the potential habitability of Mars, the Kepler mission discovering new planets outside our solar system, and Mars 2020 on the horizon, these research teams will provide the critical interdisciplinary expertise to help interpret data from these missions and future astrobiology-focused missions, “ said Jim Green, director, Planetary Science Division, at NASA Headquarters, Washington.
Average funding for each team will be approximately $8 million. The interdisciplinary teams will become members ...October 6, 2014 / Posted by: Shige Abe
The researchers dig holes in the snowpack over sea ice to establish vertical snow profiles used for sampling of the snow at different depths. Credit: Niels Kroer
Scientists have traced the evolutionary branches of Arctic bacterial resistance to toxic mercury — an adaptation that appears to have an ancient lineage. Up to 31 percent of bacteria retrieved during an Arctic expedition and grown in lab cultures contain the mercuric reductase gene(merA), a genetic sequence that encodes an enzyme that is capable of breaking down toxic mercury into a more harmless chemical form.
The study, detailed in the journal FEMS Microbiology ...
In a new video interview with C-SPAN’s American History TV, Kluge Center astrobiology chair Steven Dick explains how history, discovery, and analogy may be useful frameworks for approaching the problem of what societal reactions may be to the discovery of life beyond Earth.
Dick has spent the past year at the Library of Congress as the Baruch S. Blumberg NASA/Library of Congress Chair in Astrobiology, researching a new book on preparing for discovery. Tracing incidents of discoveries and cultural contacts in various moments throughout human history, Dick says these past incidents may illuminate what contemporary reactions could be ...October 1, 2014 / Posted by: Daniella Scalice
Wrinkle structures reproduced in the laboratory by moving microbial aggregates on a bed of loose fine sand. The total width of the image is 30 cm. Credit: Mariotti et al. 2014
A new study shows how wrinkle structures can form on a bed of sand when waves and microorganisms are present. Wrinkle structures on sandy bed surfaces are rare on Earth today, but were more common in ancient sedimentary environments. These ancient sediments often have trace fossils and imprints of early animals, and appear in the geological record after some of the largest mass extinctions on Earth.
Some scientists have ...September 30, 2014 / Written by: Aaron Gronstal
The young Earth differed markedly from today’s world. Credit: NASA
Geological evidence tells us that ancient Earth probably looked and felt very different from the planet we all recognize today. Billions of years ago, our world was a comparatively harsh place.
Thanks to advances in a niche field called paleobiochemistry, researchers in the last decade have started to “resurrect” ancient proteins. Studying these proteins’ properties is offering us glimpses of what life was like in bygone epochs. A new study published in the journal Proteins: Structure, Function, and Bioinformatics explores how such 'resurrection studies’ can provide evidence to support ...
Primary deployment test of MOM's three-fold solar panel prior to launch. Credit: ISRO
India has become the fourth nation to successfully deliver a spacecraft to Mars. The Mars Orbiter Mission (MOM) is the country’s first interplanetary mission and will collect data about martian surface features, morphology and mineralogy. The spacecraft will also search for signs of methane gas in the atmosphere.
A statement from Lisa May, program executive for the Mars Atmosphere and Volatile Evolution (MAVEN) mission in NASA’s Science Mission Directorate (SMD):
“NASA’s Mars Exploration Program is very excited to have new neighbors at Mars ...September 26, 2014 / Posted by: Aaron Gronstal
An illustration of water in our Solar System through time from before the Sun’s birth through the creation of the planets. Credit: Bill Saxton, NSF/AUI/NRAO
A new study published in Science looks beyond the question of whether Earth’s oceans can be traced to comets or other objects from space, and instead asks the question: where did the water in comets come from? The answer: some of it, maybe even a majority, is interstellar, and either survived the formation of our Sun and planetary disk or migrated here at a later time. The findings could have important ...
A light wave can be roughly imagined as a single line that wiggles up and down. If circular polarization occurs, this line rotates as the wave moves. Circular polarization of light when it interacts with dust might help identify molecules relevant to the origins of life. Image Credit: Wikimedia Commons
Dust particles can be found everywhere in space, but what can dust tell us about life’s potential in the Universe? By modeling how light scatters when it interacts with dust particles, researchers supported by the Exobiology & Evolutionary Biology are looking at ways of determining whether or ...September 25, 2014 / Posted by: Aaron Gronstal
Members of the mission team at the Lockheed Martin Mission Support Area in Littleton, Colorado, celebrate after successfully inserting NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft into orbit around Mars at 10:24 p.m. EDT Sunday, Sept. 21. Image Credit: Lockheed Martin
NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft successfully entered Mars’ orbit at 10:24 p.m. EDT Sunday, Sept. 21, where it now will prepare to study the Red Planet’s upper atmosphere as never done before. MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars.
Source: [NASA]September 22, 2014 / Posted by: Aaron Gronstal
This week’s Science Nation video features research at the Center for Chemical Evolution (CCE), headquartered at Georgia Tech. Nicholas Hud and a team from the CCE are working to understand the origins of life on Earth by studying how chain-like chemicals called polymers first came together to form RNA and DNA.
Source: [NSF]September 16, 2014 / Posted by: Aaron Gronstal
This artist's concept shows NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft orbiting Mars. Image Credit: NASA/Goddard Space Flight Center
NASA will be hosting a televised media briefing at 1 pm EDT on September 17 to outline activities around the upcoming orbital insertion of the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft. The briefing will be held in NASA’s Headquarters’ auditorium in Washington DC, and broadcast live on NASA Television and the agency’s website.
The public will be able to ask questions on social media using the hashtag #askNASA.
Panelists include: Lisa May (lead program ...September 16, 2014 / Posted by: Aaron Gronstal
The first symposium of AbGradE (Astrobiology Graduates in Europe) will be streamed live on SAGANet October, 9th-10th at http://saganet.org/page/saganlive
The purpose of AbGradE is to start a network of early-career astrobiologists in Europe. Yearly symposia will be organized where young researchers can meet, attend background lectures, and present their work and ideas in front of their peers in a pressure-free environment.
The group emerged in response to the rising need for multidisciplinary collaborations and for the creation of a solid scientific and social network across the astrobiological scene. It will also strive to set a common ...September 15, 2014 / Written by: Julie Fletcher
Not every planet in or near a habitable zone is habitable. Inhospitable Venus is an excellent example. Credit: NASA/JPL/Caltech
A new study explores how distant analogs to Venus might be detected and differentiated from Earth-like planets. Discovering a twin to Venus could help astrobiologists identify systems similar to our own Solar System and narrow the search for habitable worlds around distant stars.
The work was supported by the NASA Astrobiology Institute’s Virtual Planetary Laboratory and published in Astrophyiscal Journal Letters.
Dr. Shawn Domagal-Goldman of NASA’s Goddard Space Flight Center and co-author of the study recently spoke ...
- March 2 - Abstract Submission Deadline for 11th IAA Low-Cost Planetary Mission Conference (LCPM-11)
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