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 […]

This image is from a scientific visualization of the electric currents around Mars. Electric currents (blue and red arrows) envelop Mars in a nested, double-loop structure that wraps continuously around the planet from its day side to its night side. These current loops distort the solar wind magnetic field (not […]

This two-billion-year-old shungite records evidence for balmy, oxygen-rich conditions on the early Earth. Photo courtesy of K. Paiste. Credit: K. Paiste Research on Russian drill core challenges long-standing models of oxygenation on Earth. The international team of researchers, led by UAlberta scientists, studied a Russian drill core containing shungite—a unique […]

A new study shows that extreme, sometimes potentially fatal, mixtures of heat and humidity are emerging across the globe. This map shows documented instances, with hotter colors from yellow to red signifying the worst combinations as measured on the Centigrade “wet bulb” scale. An interactive version of this map is […]

This image shows a sample of abnormal methane concentrations over 2019. The size and color of the circles indicate the size and intensity of the plume detected. The redder the color, the higher the concentration of the methane plume. Credit: Contains modified Copernicus Sentinel data (2019), processed by Kayrros    […]