If life ever existed on Mars, the Perseverance rover's verification of lake sediments at the base of the Jezero crater reinforces the hope that traces might be found in the crater.
Astrobiology
Jan 26, 2024
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119
Publication of a new map showing all the above-ground biomass in the Brazilian Amazon is good news in the context of the severe crisis afflicting the world's largest contiguous tropical rainforest. Using airborne laser scanning ...
Earth Sciences
Dec 21, 2023
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17
Every year, billions of birds migrate thousands of miles from their summer breeding ranges to their warmer wintering ranges and back. However, the question of where these birds stop to rest and refuel along the way has long ...
Plants & Animals
Dec 14, 2023
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163
Birds are affected by the mass use of fireworks on New Year's Eve up to a distance of 10 km away. With data from weather radars and bird counts, an international team of researchers revealed how many birds take off immediately ...
Plants & Animals
Dec 11, 2023
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683
Rainfall estimations on O'ahu can be more accurate by combining Hawai'i's two main types of rainfall observations, radar and rain gauge, according to a study by University of Hawai'i at Mānoa researchers. Current observations ...
Earth Sciences
Dec 8, 2023
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1
Although volcanoes have been extensively studied, unraveling the mysteries of the underlying magma transport proves to be a challenging pursuit. Grant Block, a graduate student in The University of New Mexico's Department ...
Earth Sciences
Dec 6, 2023
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57
Down on the ground, death equals stillness—but not in space. Abandoned satellites are prone to tumble in unpredictable ways, and an ESA project with the Astronomical Institute of the University of Bern sought to better ...
Space Exploration
Nov 24, 2023
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41
Researchers are using a new AI tool to detect icebergs in the Southern Ocean. This is the first step in being able to track the complete life cycle of most icebergs across Antarctica from satellite data. The study, "Unsupervised ...
Earth Sciences
Nov 24, 2023
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1
A pair of radar experts at Swedish Defense Research working with a meteorologist from the Swedish Meteorological and Hydrological Institute has found evidence suggesting that the reason the Ukrainian military was able to ...
You may not realize it, but the Doppler effect is everywhere in our lives, from tracking the speed of cars with radar to locating satellites in the sky. It's all about how waves change their frequency when a source (like ...
Optics & Photonics
Oct 20, 2023
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