Keith Cowing Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻 Follow on

F1550C image of α Cen AB. α Cen B is saturated near the top and α Cen A is behind the F1550C mask near the center. Two known background stars are labeled (KS2 inset, detected after PSF subtraction;

Argentina and Antarctica As Seen From Space — NASA Astrobiology or exobiology is a relatively new area of science that investigates the possibilities of finding life in other places in

Schematic representation of cofactor-bound Walker A P-loops. This figure is adapted from Demkiv et al., Mol. Biol. Evol. 2025, 42, msaf055, originally published under a CC-BY license. Credit: Molecular Biology

This map shows the geographic distribution of the mobile towers of planet Earth, represented by red dots. The map contains more than 30 million individual data points, most of which

Top: an example of a chop-subtraction image pair from VLT/NEAR. Image B, following 0.05 sec after A, is subtracted to remove the detector bias, thermal background, AGPM glow, and excess

Earth’s stratosphere — NASA Although the high-altitude limit for microbial survival in the Earth–atmosphere system has remained a scientific curiosity and topic of study, the ecological significance of long-distance microbial