Gordon Osinski Archives

The subtle circular shape of the Uhackatik impact structure in Quebec, with Lake Marsal near the center, is visible in this image captured on October 12, 2025, by the OLI (Operational Land Imager) on Landsat 8. larger image NASA Earth Observatory/Lauren Dauphin

Caves, Craters, Mountains, Subsurface, Lava Tubes

An Accidental Impact Crater Discovery

by Keith CowingSeptember 21, 2026September 21, 2026

[NASA]. There are roughly 200 confirmed impact structures on Earth, but geologists estimate that hundreds more lurk undiscovered. Now, there’s at least one more—and a large one, at that—in the […]

Illustration of new research findings in the Lappajärvi crater, Finland, where traces of ancient life have been discovered in the crater’s fractures. The magnified section highlights the blue-marked fracture zones where microbial signatures have been identified. Credit: Henrik Drake, Gordon Osinski

Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Impact events, Meteorites & Asteroids, Microbiology & Virology, People Of Astrobiology, Polar / Alpine Expeditions, Press Release, Sample Return

Discovery Links Microbial Colonization To An Ancient Meteorite Crater

by Keith CowingSeptember 18, 2025September 18, 2025

In a scientific breakthrough with cosmic implications, researchers have, for the first time, precisely dated the emergence of microbial life within a meteorite impact crater—revealing that life not only survives […]