Credit & Copyright: Stephane Vetter (TWAN, Nuits sacrees) A sensitive video camera on a summit of the Vosges mountains in France captured these surprising fireworks above a distant horizon on June 26, 2020. Generated over intense thunderstorms, this one about 260 kilometers away, the brief and mysterious flashes have come to be known […]

Okmok Caldera. Credit: Alaska Volcano observatory, USGS/Wikimedia Commons Ice core samples provide new evidence of a massive volcanic eruption in 43 BCE. An international team of scientists and historians has found evidence connecting an unexplained period of extreme cold in ancient Rome with an unlikely source: a massive eruption of […]

This artist’s impression shows the red supergiant star Antares in the constellation of Scorpius. Using ESO’s Very Large Telescope Interferometer astronomers have constructed the most detailed image ever of this, or any star other than the Sun. Using the same data they have also made the first map of the […]

These giant mounds of fossil stromatolites from about 2.5 billion years ago are located in South Africa. For scale, notice a person’s dangling legs at the top center. These layered minerals were deposited on an ancient coastline by communities of microbes, including photosynthetic bacteria that generated oxygen. The new study […]

Islands in the Maldives – where sandy or gravel islands sit on top of coral reef platforms – are among those that could be affected by a global rise in sea levels. Credit: Gerd Masselink/University of Plymouth Coral reef islands across the world could naturally adapt to survive the impact […]

Two satellite images show vegetation change from fog in two areas of the Namib desert. The left image shows the areas during periods of lower fog; the right image shows the areas during periods of higher fog. Greener areas inside the squares indicate vegetation greening. Credit: Image courtesy of Lixin […]

Aerosol filter samplers probe the air over the Southern Ocean on the Australian Marine National Facility’s R/V Investigator. Credit: Kathryn Moore/Colorado State University An atmospheric region in the Southern Ocean unchanged by human-related activities. Colorado State University Distinguished Professor Sonia Kreidenweis and her research group identified an atmospheric region unchanged […]