Credit: Marco Gallio, Marcus C. Stensmyr. https://news.northwestern.edu
(Subscribe to Science For All, our weekly newsletter, where we aim to take the jargon out of science and put the fun in. Published in PNAS
Who were the original inhabitants of the picturesque Bahamas? When did they arrive? A detailed study of the fire and vegetation (of the last 3,000 years) showed that indigenous people called Lucayans arrival in the northern Bahamas at around 830 CE. “While people were present in Florida more than 14,000 years ago at the end of the last ice age, these people never crossed the Florida Straits to nearby Bahamian islands, only 80 to 105 km away...Meanwhile, the Caribbean islands were populated by people migrating from South American northward,” explains Peter van Hengstum, one of the authors in a release.
Published in Science
Meet Gliese 486 b, a new exoplanet found orbiting the red dwarf star Gliese 486. The exoplanet is 2.81 Earth masses, 1.31 Earth radii and is a Super-Earth (exoplanet larger than Earth and smaller than Neptune). “The gravity is also 70% stronger than on Earth, making it harder to walk and jump. Someone who weighed 50 kg on Earth would feel like they weighed 85 kg on Gliese 486b, explains astronomer José Antonio Caballero in a release.
Published in Advanced Materials
A new resin membrane could soon help clean up beaches contaminated with oil spills. Named SAVER (superamphiphilic vitrimer epoxy resin) membranes, they can separate oil and water efficiently. The paper reports that it is similar to classical epoxy resins and “the blocked membrane can be easily recovered when contaminated...recycled, and re‐used.”
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