The Astrobiology Science Conference (AbSciCon2015) will be held in Chicago, Illinois, on June 15–19, 2015. The Preliminary Program has been posted to the AbSciCon website. There are also several key dates coming up soon. The deadline for hotel reservations at the group rate is May 15, and the deadline for registration at the reduced rate is May 18.
Several additional activities to be aware of:
Sunday, June 14: Online Learning Workshop – An Afternoon of Exploration: The Future of Science Education, 12:30 – 4:30pm
The presenters are: President’s Professor Ariel Anbar & Exploration Architect Lev Horodyskyj, School of Earth and Space Exploration at ASU. Click here to register for free.
Sunday, June 14: Astrobiology Research Data Management Workshop, 1:00 – 5:00pm
In the last decade the ...May 11, 2015 / Written by: Julie Fletcher
This 3-D sketch shows a cross-section of the Mariana Arc with some of its main structures and features. Credit: NOAA
Astrobiologists studying microbial genomics in populations from the Mariana Arc have provided new information about the diversity and adaptation of microorganisms in the deep sea.
Microorganisms that live deep below the Earth’s oceans can provide important insights about the potential for life in subsurface oceans on icy worlds. The adaptations they use to survive can also help astrobiologists understand the mechanisms that allow living organisms to inhabit some of the most extreme conditions on Earth.
The paper, “Strain-level genomic ...May 8, 2015 / Written by: Aaron Gronstal
Silver Lake is a dry lake bed in the Mojave Desert. The Mojave has long been studied as a geological analogue to ancient Mars. Image Credit: NASA Spaceward Bound, Ben Haller
Astrobiologists have revealed new details about hypolithic cyanobacteria living in a range of different rock types from the Silver Lake region of the Mojave Desert. This area of the Mojave has been studied as a geological analog to Mars, and has several different rock types colonized by hypoliths. The results show that the cyanobacteria Chroococcidiopsis is able to colonize dry environments in a variety of rocks and with varying ...May 7, 2015 / Written by: Aaron Gronstal
Sam Bowring (MIT) and Sara Seager (MIT) have been elected to the National Academy of Sciences. Credit: MIT
The National Academy of Sciences (NAS) has announced the election of 84 new members, including two members of the NASA Astrobiology community.
Geologist Samuel Bowring is a current member of the NASA Astrobiology Institute team at the Massachusetts Institute of Technology (MIT). Bowring is a professor in MIT“s Department of Earth, Atmospheric, and Planetary Science.May 7, 2015 / Written by: Aaron Gronstal
A view of Antarctica's Taylor Valley. The Antarctic Dry Valleys are considered one of the most Mars-like environments on Earth. Credit: Peter West, National Science Foundation
Astrobiologists have provided new data about microorganisms that live in the permafrost of Antarctica’s Dry Valleys. Using molecular techniques alongside culturing, the team studied bacterial communities from Taylor Valley and identified psychrophiles, or organisms that are able to remain active at low temperatures. In the laboratory, bacteria collected from the Taylor Valley permafrost remained active down to −5 °C (with peak activity at 15 °C).
This work was supported by the Astrobiology ...May 5, 2015 / Written by: Aaron Gronstal
Octopus Spring in Yellowstone National Park. Credit: David Strong, Penn State University
Researchers supported in part by the Exobiology & Evolutionary Biology element of the NASA Astrobiology Program have isolated a new 'acid-loving’ microorganisms from cyanobacterial microbial mats associated with Octopus Spring in Yellowstone. Chloracidobacterium thermophilum strain B is an anoxygenic photoheterotroph, a member of the phylum Acidobacteria, and moderately thermophilic.
The paper, “Chloracidobacterium thermophilum gen. nov., sp. nov.: an anoxygenic microaerophilic chlorophotoheterotrophic acidobacterium,” was published in the International Journal of Systematic and Evolutionary Microbiology.May 4, 2015 / Written by: Aaron Gronstal
Scientists are providing new insights into the role mutations play in the evolution of microbial populations. Researchers examined the relationship between different, beneficial mutations in a population, and how organisms survive when one or more of the mutations are present in a single organism.
The study, “ The Valley-of-Death: Reciprocal sign epistasis constrains adaptive trajectories in a constant, nutrient limiting environment,” was published in the journal Genomics.
The research was supported in part by the Exobiology & Evolutionary Biology element of the NASA Astrobiology Program.
Source: [Genomics]May 1, 2015 / Written by: Aaron Gronstal
Researchers subjected populations of Pleodorina starrii to selective pressures in mixed environments and studied their response. Above is a micrograph of Pleodorina starrii. Image Credit: © Matthew D. Herron, University of Arizona
By studying colonies of volvocine green algae, astrobiologists have uncovered new clues about how cells gained the ability to differentiate into functional types, a critical step in the evolution of multicellular organisms.
The paper, “Fitness trade-offs and developmental constraints in the evolution of soma: an experimental study in a volvocine alga,” was published in the journal Evolutionary Ecology Research.
This work was supported in part by the NASA Astrobiology ...April 30, 2015 / Written by: Aaron Gronstal
An artist depiction of a cryobot tunneling through ice. Credit: Copyright Stone Aerospace, presented at AbSciCon 2012
Researchers are developing a protoype cryobot that could help astrobiologists explore icy worlds in the Solar System as well as some of the most extreme environments on Earth. Technologies developed for VALKYRIE (Very-deep Autonomous Laser-powered Kilowatt-class Yo-yoing Robotic Ice Explorer) could allow robots to explore beneath the ice caps of planets, or glaciers here on Earth. One element of the design includes using a high-energy laser to power the ice explorer.
Details about the 4-year effort are presented in the paper, “Progress towards ...April 29, 2015 / Written by: Aaron Gronstal
Scanning electron microscopy image of a MOWS specimen, which is about 4 mm in total length. Image taken by Phoebe Cohen
Researchers supported in part by the Exobiology & Evolutionary Biology element of the NASA Astrobiology Program have discovered new and unusual fossils in Mongolia. The structures, known as macroscopic organic warty sheets (MOWS), could be the remains of fungal biofilms, or even previously unknown organisms that are now extinct. However, the team believes that multiple lines of evidence indicate that the MOWS are the remnants of ancient marine algae.
Regardless of the organisms responsible for their production, the discovery of MOWS increases our understanding of biological diversity during a period of Earth’s history known as the Cryogenian glacial interlude (662–635 million years ago). The discovery also shows that macroscopic and morphologically complex multicellular organisms were present in the Cryogenian.
The study, “Fossils of putative marine algae from the cryogenian glacial interlude of Mongolia,” was published in the journal Palaios.
Source: [Palaios]April 29, 2015 / Written by: Aaron Gronstal
Nathalie A. Cabrol diving and sampling in the Licancabur lake at 5,917 m elevation in the volcano’s crater. Photo Credit: The High Lakes Project: The SETI Institute Carl Sagan Center/NASA Ames/ NAI
Astrobiologist Nathalie Cabrol recently spoke about her work in remote field sites, including high-altitude lakes in the Andes, at the TED2015 conference. In her talk, Cabrol discusses how this work could help scientists search for signs of life on Mars.
Cabrol’s TED Talk, “Nathalie Cabrol: How Mars might hold the secret to the origin of life,” is now available to watch from TED.com ...April 28, 2015 / Posted by: Aaron Gronstal
Dickinsonia fossil from Nilpena, South Australia. Black arrow points to lifted portion of the specimen and is pointed in the direction the waves would have moved during the Ediacaran. Credit: Droser Lab, UC Riverside.
Scientist supported in part by the NASA Astrobiology Institute have discovered that certain specimens of fossil Dickinsonia appear incomplete because they were lifted from the sea floor by ancient ocean currents, allowing sand to fill in the gap. The results suggest that Dickinsonia was mobile and not attached to the sea floor.
The study, “Dickinsonia liftoff: Evidence of current derived morphologies,” was published in the journal ...April 28, 2015 / Posted by: Aaron Gronstal
A hot spring in Yellowstone National Park. Image Credit: Darren Edwards, http://fettss.arc.nasa.gov/collection/details/yellowstone-1/
A study of the Yellowstone hot springs has revealed new clues about how organic materials might have been preserved in similar environments on ancient Mars. Researchers found that iron could either preserve or react with organic material in a way that helps form a fossil record.
The study, supported in part by the Exobiology & Evolutionary Biology element of the NASA Astrobiology Program, was published in the journal Astrobiology.
Source: [astrobio.net]April 27, 2015 / Posted by: Aaron Gronstal
NASA is bringing together experts spanning a variety of scientific fields for an unprecedented initiative dedicated to the search for life on planets outside our solar system.
The Nexus for Exoplanet System Science, or “NExSS”, hopes to better understand the various components of an exoplanet, as well as how the planet stars and neighbor planets interact to support life.
“This interdisciplinary endeavor connects top research teams and provides a synthesized approach in the search for planets with the greatest potential for signs of life,” says Jim Green, NASA’s Director of Planetary Science. “The hunt for exoplanets is not only ...April 24, 2015 / Posted by: Aaron Gronstal
The remotely operated Nereus vehicle at the the Mid-Cayman Spreading Center in 2009. A new sample collection tool for marine microbiology and biogeochemical studies could be used on such vehicles to help astrobiologists study environments deep below the ocean surface. Credit: Advanced Imaging and Visualization Laboratory, WHOI
Researchers supported in part by the Astrobiology Science & Technology for Exploring Planets element of the NASA Astrobiology Program have developed a new tool for collecting large-volume samples for marine microbiology and biogeochemical studies.
The Suspended Particulate Rosette V2 large volume multi-sampling system can be deployed on remotely operated vehicles, and allows astrobiologists to quickly collect multiple samples of the water column from remote environments like hydrothermal plumes. The system was successfully tested on hydrothermal vent systems of the Mid-Cayman Rise.
The paper, “A large volume particulate and water multi-sampler with in situ preservation for microbial and biogeochemical studies,” was published in the journal Deep Sea Research Part I: Oceanographic Research Papers.April 22, 2015 / Written by: Aaron Gronstal
- May 29 - Application Deadline for The Forum for New Leaders in Space Science
- May 29 - Pre-proposal deadline for FfAME - Templeton Origins Funding Opportunity
- May 31 - Abstract Submission Deadline for 2nd Symposium of the Committee on Space Research (COSPAR 2015): Water and Life in the Universe
- May 31 - Application Deadline for Gordon Research Conference on Origins of Solar Systems
- May 31 - Abstract Submission Deadline for Life in a Cosmic Context - 5th Workshop of the Italian Astrobiology Society
- June 2 - Workshop on the Formation of the Solar System II
- June 10 - Registration Deadline for European Week of Astronomy and Space Science (EWASS) 2015
- June 15 - Astrobiology Science Conference (AbSciCon) 2015
- June 15 - Application Deadline for Summer School at Moletai Observatory: "Formation and Evolution of Planetary Systems and Habitable Planets"
- June 15 - Travel Grant Application Due for IAU XXIX General Assembly
- June 19 - Application Deadline for the Japan Aerospace Exploration Agency (JAXA) International Top Young Fellowship (ITYF)
- June 22 - International Symposium on Molecular Spectroscopy 70th Meeting
- June 24 - European Week of Astronomy and Space Science (EWASS) 2015
- June 28 - Abstract and Registration Deadline for 15th EANA Astrobiology Conference
- June 30 - Abstract Submission Deadline for Exoplanetary Atmospheres and Habitability Workshop
- June 30 - Principal Investigator or Associate Principal Investigator Opportunity at The Earth-Life Science Institute (ELSI) at the Tokyo Institute of Technology