Applications have opened and are due February 5, 2018.
Saturn’s moon Enceladus has an ocean beneath the ice, and at the interface between the ocean and the rocky core, hydrothermal vents could be breeding grounds for prebiotic chemistry. Credit: NASA/JPL/Space Science Institute.
Laboratory experiments on Earth can now simulate the conditions under which life might emerge on Saturn’s moon Enceladus, as well as other icy alien worlds, according to new research published in the September 2017 issue of the journal Astrobiology.
Since there is life virtually wherever there is water on Earth, researchers looking for alien life often focus on planets in the habitable zones of stars, which are the regions around stars where it is warm enough for worlds to possess water on their surfaces. However, in the past few decades, scientists have increasingly found evidence for oceans – and, potentially, life – hidden under the icy crusts of places such as Jupiter’s moons Europa, Ganymede and Callisto, and Saturn’s moons Enceladus and Titan.
Source: [Astrobio.net]December 08, 2017 / Written by: Charles Q. Choi
AbGradCon 2018 takes place June 4-8, 2018, preceded by a Proposal Writing Retreat on June 1-4. Source: AbGradCon.
The application period for the Astrobiology Graduate Conference (AbGradCon) 2018 is now open! Abstract submission closes Monday, February 5, 2018.
AbGradCon 2018 will be held at the Georgia Institute of Technology in Atlanta from Monday, June 4th to Friday, June 8th, with a Proposal Writing Retreat (PWR) taking place from June 1st to June 4th. Applicants for AbGradCon will be able to apply for PWR at the same time as they submit their AbGradCon application. AbGradCon has funds to support a limited number of participants, with the ability to accommodate more individuals if participants are able to provide some or ...
Source: [AbGradCon]December 01, 2017 / Posted by: Miki Huynh
We are pleased to announce the selections for the October 2017 Early Career Collaboration Award (ECCA).November 27, 2017 / Posted by: Miki Huynh
Image source: NASA
Daniel Rothman, professor of geophysics in the MIT Department of Earth, Atmospheric and Planetary Sciences, co-director of MIT’s Lorenz Center, and member of the NASA Astrobiology Institute team based at MIT has analyzed significant changes in the carbon cycle over the last 540 million years, including the five mass extinction events. He has identified “thresholds of catastrophe” in the carbon cycle that, if exceeded, would lead to an unstable environment, and ultimately, mass extinction.
In the paper, “Thresholds of catastrophe in the Earth system,” published in Science Advances, Rothman proposes that mass extinction occurs if one of two thresholds are crossed: For changes in the carbon cycle that occur over long timescales, extinctions will follow if those changes occur at rates faster than global ecosystems can adapt. For carbon perturbations that take place over shorter timescales, the pace of carbon-cycle changes will not matter; instead, the size or magnitude of the change will determine the likelihood of an extinction event. Taking this reasoning forward in time, Rothman predicts that, given the recent rise in carbon dioxide emissions over a relatively short timescale, a sixth extinction will depend on whether a critical amount of carbon is added to the oceans. That amount, he calculates, is about 310 gigatons, which he estimates to be roughly equivalent to the amount of carbon that human activities will have added to the world’s oceans by the year 2100.
The full press release by Jennifer Chu is available at MIT News.
Source: [Science Advances]November 20, 2017 / Posted by: Miki Huynh
In preparation for and as an input to the upcoming decadal surveys in astronomy and astrophysics and planetary science, the National Academies of Sciences, Engineering, and Medicine has been charged with carrying out a study on the astrobiology science strategy as it relates to the search for life in the solar system and extrasolar planetary systems (http://sites.nationalacademies.org/SSB/CurrentProjects/SSB_180812). The committee is requesting community input in the form of white papers. White papers will be accepted from immediately until January 8, 2018. Papers received earlier will have a higher liklihood of being read and considered.November 17, 2017 / Posted by: Miki Huynh
Some of the researchers of Georgia Tech at AbSciCon 2017. From left: Cesar Menor-Salvan, Nick Hud, Justin Lawrence, Jacob Buffo, Frank Rosenzweig, Amanda Stockton, Britney Schmidt, Kennda Lynch, Gavin Mendez, George Tan, Jennifer Glass, Zachary Duca, Nadia Szeinbaum, Aaron McKee, Chloe Stanton, and Marcus Bray (Courtesy of Jennifer Glass). Source: Georgia Tech
The growing visibility of researchers interested in astrobiology is helping Georgia Tech emerge as a powerhouse in the field.
“Georgia Tech is clearly recognized as a hub for astrobiology and maybe the one that’s growing the most quickly,” says Edward Goolish, the deputy director of the NASA Astrobiology Institute (NAI), one of the six elements of the NASA Astrobiology Program. People at Georgia Tech, Goolish adds, “have been generous with their time and have contributed in important ways when NASA has reached out to the science community for input.”
Read the full story at the Georgia Tech website.
Source: [Georgia Tech]November 16, 2017 / Written by: Georgia Tech
A breakdown of how water may be heated inside Saturn’s moon Enceladus. Image Source: NASA/JPL-Caltech/Space Science Institute, LPG-CNRS/U, Nantes/U, Angers, ESA (via ESA)
Building from the revelation of oceans underneath the surface of Saturn’s moon Enceladus by the late Cassini spacecraft, a new study suggests that tidal friction could generate enough heat to power tens of millions to billions of years of hydrothermal activity inside Enceladus if the moon has a highly porous core. The likelihood would increase the moon’s potential as a habitable world.
The paper, “Powering prolonged hydrothermal activity inside Enceladus” is published in Nature Astronomy and authored by Gaël Choblet, Gabriel Tobie, Christophe Sotin, Marie Běhounková, Ondřej Čadek, Frank Postberg, and Ondřej Souček. Choblet and Tobie are also members of the NASA Astrobiology Institute (NAI) team based at the Jet Propulsion Laboratory (JPL), and Sotin is a Co-I for the NAI team at JPL.
A press release is available through the European Space Agency.
Source: [Nature Astronomy]November 15, 2017 / Posted by: Miki Huynh
Cover of Nature Geosciences featuring the research of M. Amenabar et al. The image shows overlapping gradients in mineral substrates capable of supporting microbial metabolism in a hot spring outflow channel in Yellowstone National Park, WY. Source: Nature Geosciences (August 2017 Volume 10 No 8)
Scientists from the University of Wisconsin-Madison (UW), Arizona State University (ASU), and Montana State University (MSU) have teamed up to discover a puzzle at the junction of geochemistry and biology: Why would a microorganism thriving in a hot spring draw its energy from low-quality sources instead of rich ones?
The paper “Microbial substrate preference dictated by energy demand rather than supply” is published in Nature Geoscience, and authored by Maximiliano Amenabar (MSU, also with the NASA Astrobiology Institute (NAI) team at University of Colorado, Boulder (CUB)), Everett L. Shock (ASU and NAI teams at MIT and CUB), Eric Roden (UW and NAI team at UW), John Peters (MSU), and Eric Boyd (MSU and NAI teams at CUB, UW, and the Virtual Planetary Institute).
The excerpted press release by Robert Burnham is available through the Arizona State University website.
Source: [Nature Geosciences]November 07, 2017 / Posted by: Miki Huynh
A microbe collected from an incubation of coal amended with methylamine. Source: Trembath-Reichert et al. (via DCO)
Elizabeth Trembath-Reichert. a NASA Postdoctoral Porgram fellow at the Woods Hole Oceanographic Institution and a member of the NASA Astrobiology Institute team based at the University of Southern California, is lead author on a paper that measures the activity level and generation times of microbes living in coal and shale beds up to two kilometers below the seafloor. Despite low cell numbers and slow reproduction, the microbes actively consume carbon and nitrogen compounds from their environment.
The paper, “Methyl-compound use and slow growth characterize microbial life in 2-km-deep subseafloor coal and shale beds” is published in Proceedings of the National Academy of Sciences.
We excerpt a press release from Deep Carbon Observatory.
Source: [PNAS]November 01, 2017 / Posted by: Miki Huynh
Magdalena Osburn has been selected as a 2017 Packard Fellow. Image source: Osburn Isotope Geobiology Lab
Geobiologist Magdalena “Maggie” Osburn has received a 2017 David and Lucile Packard Fellowship Award for her work at the geochemistry-microbiology interface.
Source: [Packard Foundation]October 25, 2017 / Posted by: Miki Huynh
The Ask an Astrobiologist Show returns for its second season, beginning with an interview with Dr. Carl Pilcher, former director of the NASA Astrobiology Institute. The live Q&A has been rescheduled to Thursday, November 2 at 10AM PT.
Source: [SAGANet]October 19, 2017 / Posted by: Miki Huynh
The next live STScI webcast, “Contemporary Water and Habitability of Mars,” presented by Lujendra Ojha of Johns Hopkins University airs November 3 at 12PM ET.
For more info on the STSci seminar series and to view the calendar of upcoming talks, visit: http://www.stsci.edu/institute/smo/ipl/lectureOctober 17, 2017 / Posted by: Miki Huynh
Artist concept of the early Earth's surface.
The early Earth was a hellish place, pummeled by meteors and a choking atmosphere, and yet somehow life got a grip there.
Source: [Earth and Planetary Science Letters]October 17, 2017 / Written by: Aaron Gronstal
Source: Carnegie Institute for Science
Wednesday, October 25, 2017, 6:30 PM ET What does it mean to be a habitable planet? How can we find life if it’s truly “alien” and different from life on Earth? And what techniques can we use to search for life on worlds orbiting distant stars? Drs. Arney and Domagal-Goldman, astrobiologists at NASA Goddard Space Flight Center, will discuss the science behind these questions and the future telescopes that may provide the answers. The lecture at the Carnegie Institution for Science will be streamed live. For details, visit the event page.
Source: [Carnegie Institute for Science]October 16, 2017 / Posted by: Miki Huynh
Screenshot from the Life Underground Game where students take the role of investigators of extreme subsurface environments looking for microbial life.
The NASA Astrobiology Institute has funded the production of an exciting, new educational game/software called Life Underground. In the game, students take on the role of a young scientist navigating and investigating a subsurface environment, searching for and characterizing microbial life.
The development team at the University of Southern California’s School of Cinematic Arts is seeking educator reviewers for the game.October 06, 2017 / Posted by: Miki Huynh
- December 16 - Early Registration Deadline for 2nd Recontres du Vietnam on Exoplanetary Science
- December 17 - Application Deadline for 2018 Gordon Research Conference: Origins of Life
- January 12 - Indication of Interest Deadline for 3rd Ocean Worlds
- January 15 - Application Deadline for Rencontres Exobiologiques Pour Doctorants (RED ’18) Astrobiology Introductory Course
- January 19 - Abstract Submission Deadline for Asia Oceanic Geosciences Society (AOGS) 15th Annual Meeting
- January 22 - Abstract Submission and Registration Open for 3rd Ocean Worlds
- January 25 - Abstract Submission Deadline for 2nd International Mars Sample Return Conference
- January 31 - Early Registration Deadline for 2018 Humans to Mars Summit (H2M)
- February 1 - Application Deadline: NASA Earth and Space Science Fellowship (NESSF) Program
- February 5 - Applications Close for Astrobiology Graduate Conference (AbGradCon) 2018
- February 9 - Abstract Submission Deadline for 42nd COSPAR Scientific Assembly
- February 9 - Application Deadline for Geobiology 2018
- February 15 - Application Deadline: 2018 Lewis and Clark Fund for Exploration and Field Research in Astrobiology
- February 16 - Early Bird Registration Deadline for 2nd International Mars Sample Return Conference
- March 1 - Application Deadline: NASA Astrobiology Postdoctoral Program
- March 7 - Abstract Submission Deadline for 3rd Ocean Worlds
- March 15 - Application Deadline: NASA Minority Institute research Support (MIRS)
- April 1 - Early Bird Registration Deadline for 5th European Conference on Permafrost (EUCOP 2018)
- NAI 2015 Annual Science Report