![Life 2.0 mission concept and simulated biosignature spectroscopy. The distributed array observes a common target with many one-meter telescope modules. The example spectra illustrate UV-optical atmospheric signatures and the simulated recovery of O₃, O₂, and H₂O after calibrated spectral co-addition. -- [astro-ph.IM]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Life-2.0.jpg?resize=1200%2C719&ssl=1)
[astro-ph.IM] Answering the question “Are we alone?” requires atmospheric spectroscopy of nearby terrestrial planets. For an Earth–Sun analog, even the strongest transmission signals are expected to be of order 1 […]
Missions & Hardware
![View of the Hindsight application: drive panel synchronization (A) ensures consistent arrangement of data sources. The playhead (B) is accessible across the drive panel, tying all visualizations to the same timestamp. The fault in question is highlighted across data in red via the fault overlay (C). -- [cs.HC]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Hindsight.png?resize=1200%2C723&ssl=1)
Posted inRobotics/Rovers/UAVs
Hindsight: Similarity-Based Analytics For Mars Rover Drive Retrieval
[cs.HC] While Mars rover operators plan drives across hazardous Martian terrain and diagnose unexpected faults, the necessary information is distributed across separate systems and often reconstructed through manual correlation and […]
Posted inPluto
New Horizons Finds Evidence Of Recent Liquid On Pluto’s Surface
[NASA] “Pluto never stops surprising us,” said Alan Stern, principal investigator of New Horizons and lead study author from the Southwest Research Institute in Boulder, Colorado. “In addition to suggesting […]
![Physical and chemical gradients predicted to dictate habitability across depth in the martian subsurface. These include (1) constraints on water; although water activity (aw) gradients are not yet known for Mars, predicted liquid brine stability depends on primary ionic composition with perchlorate-rich brines transitioning into chloride- and sulfate-enriched brines with depth and temperature (Chevrier and Slank, 2024; Stevens and Cockell, 2023). It is important to note that porosity is expected to decrease with depth, which may also influence water availability, with any potential brines increasingly localized to pore spaces and fractures (Michalski et al., 2018). (2) Surface radiation exposure is expected to subside to lower background radionuclide decay around 3–5 m depth. (3) If liquid water is present at depth, chemotrophic microbial communities could utilize the products of water–rock interaction including inorganic electron donors/acceptors and simple abiotic organics. Image created using biorender.com.-- [Astrobiology (Journal)]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Life-Detection.png?resize=1200%2C719&ssl=1)
Posted inMars
Life Detection In The Martian Subsurface: Advancements In Microbial Metabolic Research Under Mars Laboratory And Field-Analog Conditions Since Viking
[Astrobiology (Journal)] Following the Viking experiments in 1976, many of the original inferences of biological metabolism have been replicated via abiotic mechanisms we now know are plausible on Mars’ surface.
Posted inExoplanets, -moons, -comets
ESCAPE: A Small Explorer Mission To Study The Stellar Drivers Of Exoplanet Evolution
[astro-ph.EP] The long-term stability of exoplanetary atmospheres depends critically on the extreme-ultraviolet (EUV) photon and high-energy particle fluxes from the host star, which are poorly constrained.
Posted inVenus
Development Of A Data Retrieval Algorithm For Venus Nephelometry In Preparation For The Rocket Lab Mission To Venus
[Science Direct] The Rocket Lab Mission to Venus (RLMV) will carry a single primary instrument, the Autofluorescence Nephelometer (AFN), to interpret atmospheric particle properties from light-scattering measurements. This process is […]
Posted inComets and Asteroids
Gelato: A Mission Concept for Comet Surface Sample Return
[The Planetary Science Journal] Understanding the role of comets in solar system formation and evolution has continued to be a driving question in planetary science. It is believed that comets […]
Posted inIo
Lava World Recon: Juno Measures Subsurface Temperature Of Io
[SwRI] NASA’s Juno mission has made the first direct measurements of the temperature below the surface of Jupiter’s moon Io, which reveal significant heating in the upper few feet of […]
Posted inMars
Mars Curiosity Blog Sols 4961-4967: Approaching a Break in the Rock Record?
[NASA JPL] Earth planning date: Friday, July 24, 2026
Posted inImaging & Spectroscopy
Proba-3 Views Its Coronagraph – And Our Home World
[ESA]. At first glance, this is just another image of Earth. But look closely, and you will be able to make out Proba-3’s Coronagraph spacecraft hiding in plain sight, covering […]