Earth’s biodiversity is increasingly threatened and at risk. We propose a passive lunar biorepository for long-term storage of prioritized taxa of live cryopreserved samples to safeguard Earth’s biodiversity and to […]
Approximately one billion years (Gyr) in the future, as the Sun brightens, Earth’s carbonate-silicate cycle is expected to drive CO2 below the minimum level required by vascular land plants, eliminating […]
Analysis of air samples taken at altitudes of up to 3,000 metres above Japan has revealed the presence of a vast range of viable bacteria and fungi transported by air […]
The Earth’s rotation has been decelerating throughout its history due to tidal dissipation, but the variation of the rate of this deceleration through time has not been established. We present […]
![Annual mean climate across 2003-2018 derived from ERA5 for (a) surface air temperature Ts [K], (b) biotemperature Tbio [K], (c) precipitation P [mm day−1 ⊕ ], (d) evaporation E [mm day−1 ⊕ ]-- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/07/A-Novel-Metric-For-Assessing.png?resize=1200%2C715&ssl=1)
Planetary surface habitability has so far been, in the main, considered in its entirety. The increasing popularity of 3D modelling studies of (exo)planetary climate has highlighted the need for a […]
The Decadal Survey on Astronomy and Astrophysics 2020 has recommended that NASA realize a large IR/optical/UV space telescope optimized for high-contrast imaging and spectroscopy of ∼25 exo-Earths and transformative general […]
The atmosphere may be Earth’s largest microbial ecosystem. It is connected to all of Earth’s surface ecosystems and plays an important role in microbial dispersal on local to global scales. […]
Around two million years ago, Earth was a very different place, with our early human ancestors living alongside saber-toothed tigers, mastodons, and enormous rodents. And, depending on where they were, […]
Life on Earth has experienced numerous upheavals over its approximately 4 billion year history. In previous work we have discussed how interruptions to stability lead, on average, to increases in […]
M dwarf stars are not only the most promising hosts for detection and characterization of small and potentially habitable planets, they provide leverage relative to solar-type stars to test models […]
