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Potential false positive mechanisms for O2. This cartoon summarizes the atmospheric mechanisms by which O2 could form abiotically at high abundance in a planetary atmosphere.
Understanding Oxygen as an Exoplanet BiosignatureJune 20, 2018
On our quest to find life beyond Earth, scientists first must have to ask themselves: what signs would be the most compelling evidence?
Climbing the Ladder to Life DetectionJune 18, 2018
Tiny liquid droplets may have concentrated precious biomolecules and acted as bioreactors in the RNA World.
'Bioreactors' in the RNA WorldJune 18, 2018
This beautiful area in Western Australia is home to some of the most ancient rocks on Earth.
Distinguishing Microfossils from PseudofossilsJune 15, 2018
AbGradCon 2018 will be hosted by the Georgia Institute of Technology in Atlanta, GA from June 4-8, 2018.
Recap of the 2018 Astrobiology Graduate Conference (AbGradCon)June 15, 2018
Dr. Rebecca Rapf (third from left) has become the inaugural winner of the Maggie C. Turnbull Award.
The Inaugural Maggie C. Turnbull Early Career AwardJune 14, 2018
Curiosity Rover's Self Portrait at 'John Klein' Drilling Site.
3 Questions: Roger Summons on finding organic matter on MarsJune 13, 2018
ARIEL will focus on hot planets that orbit close to their star.
The Arizona NExSS Winter SchoolJune 12, 2018
This series of images of Comet 67P/Churyumov–Gerasimenko was captured by Rosetta’s OSIRIS narrow-angle camera on 12 August 2015, just a few hours before the comet reached the closest point to the Sun along its 6.5-year orbit, or perihelion.
Cometary Dust: A ReviewJune 8, 2018
In β-alanine, the amino group (blue) is attached to the β carbon as opposed to the α carbon. The α carbon (left image) is the central carbon where both the amino (blue) and carboxylic acid (red) groups are attached.
Tools in Studying Prebiotic PeptidesJune 7, 2018
Curiosity Self-Portrait at 'Mojave' Site on Mount Sharp
Breakthrough Findings on Mars Organics and Mars MethaneJune 6, 2018
An artist’s concept of the early Earth. While still fairly inhospitable compared to today’s standards, the early Earth may have had a more moderate climate and ocean temperature and pH than had been thought.
Habitability of the Young Earth Could Boost the Chances of Life ElsewhereJune 5, 2018
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