[NASA/JPL-Caltech/UA] Many impact craters on Mars were filled with ice in past climates. Sometimes this ice flows or slumps down the crater walls into the center and acquires concentric wrinkles […]
Mars
Posted inNASA Astrobiology Program
Astrobiology: Fifty Years After Viking: New Special Collection Available Now
Guest edited by Dr. Scott M. Perl (LA-NHM) and Dr. Mary Beth Wilhelm (NASA Ames) To mark the 50th anniversary of NASA’s Viking landings, the journal Astrobiology has published a […]
Posted inMars
Martian Geology: Possible Evidence Of Glacial Processes
At the southern section of the floor of an impact crater is this stunning lobate (tongue-shaped) debris apron with surface banding showing high sinuosity.
![Graphical illustration showing planetary bodies (not to scale) where H2O2 has been detected, the major production pathways of H2O2, and its role in a few examples of prebiotic chemical networks. -- [Fundamental Research]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Hydrogen-peroxide-1.png?resize=1200%2C716&ssl=1)
Posted inBiosignatures & Paleobiology
Hydrogen Peroxide On Mars And Icy Moons: Implications For The Search For Extraterrestrial Signatures Of Prebiotic Chemistry
[Fundamental Research]. Hydrogen peroxide (H2O2) is increasingly recognized as an important molecule in prebiotic chemistry that potentially had a large impact on life’s early evolution.
Posted inMars
An Interesting Crater In Valles Marineris
[ESA] Along the equator of Mars, CaSSIS spotted a couple of interesting craters in Ganges Chasma, a mineralogically diverse canyon in the far-eastern portion of Valles Marineris.
Posted inMars
The Search for Life and Biosignatures on Mars: A Mars System Science Approach (Atmosphere, Hydrosphere, Cryosphere, Lithosphere, Geologic History)
[Astrobiology (Journal)] The most important quest in Mars exploration is the search for biosignatures. We adopt a Mars System Science approach, calling on information from the atmosphere, hydrosphere, cryosphere, lithosphere, […]
Posted inMars
Biological Validation and Agnostic Experiments For Extant And Extinct Microbial Life Within The Martian Subsurface
[Astrobiology (Journal)] Over the last several decades, investigations of Earth’s subsurface and other extremely low-biomass systems have refined our understanding of the environmental limits of life, driven by methodological advances […]
Posted inMars
Getting A Closer Look Into Cerberus Fossae On Mars
[NASA/JPL/UA] Visible in this observation is a section of Cerberus Fossae (width approximately 250 meters), which are comprised of a series of rifts present located in Elysium Planitia just north […]
Posted inMars
Subsurface Sediment Mobilization On Mars
[NASA/JPL/UA] This image covers a pie-like feature that thought to be the result of subsurface sediment mobilization.
Mars and the Earthlings: Can we, and should we, go to Mars?
This training school stemmed from the European Astrobiology Institute’s Project Team “Mars and the Earthlings”, whose goal is to provide reliable information and foster healthy, evidence-based discussions on human Mars […]