Youngsters can take to the water as early as 2 days old Open water swimming is not for the fainthearted, especially when air and water temperatures are frigid. So how do furry Weddell seal pups born on the Antarctic sea ice keep on swimming? Although their blanket of fluffy insulation works fine when dry, as […]
An international team of astronomers observed 2020 XL5 and confirmed it is an Earth Trojan asteroid orbiting the sun along the same path as Earth. 2020 XL5 is the second, and larger, Earth Trojan asteroid discovered. The team of U.S. National Science Foundation researchers used images of the sky’s horizon at daybreak, captured by the Southern Astrophysical Research Telescope […]
Permafrost — ground that has been permanently frozen for two or more years — makes up a large part of the Earth, around 15% of the Northern Hemisphere. Permafrost is important for the planet’s climate, containing large amounts of biomass stored as methane and carbon dioxide, making tundra soil a carbon sink. However, permafrost’s innate […]
Genes evolved under intense poaching pressure In regions of Africa wracked by heavy poaching, scientists have observed an increasing number of African elephants without their iconic white tusks, prized in the multibillion-dollar wildlife black market. But there has been no direct evidence indicating how this was happening or why this trait was occurring exclusively in […]
New research shines light on poorly understood processes Geoscientist Michael Rawlins of the University of Massachusetts Amherst is improving the understanding of the Arctic’s carbon cycle — the way carbon is transferred among the land, ocean and atmosphere. To better understand future trends in atmospheric carbon dioxide and climate change, a fuller picture of how carbon cycles […]
A long-feared scenario in which global warming causes Arctic permafrost to melt and release enough methane—a potent greenhouse gas–to accelerate warming and cause catastrophe probably won’t happen. That is the conclusion of a study appearing in the journal Science that began more than 20 years ago as a query posed by Jeff Severinghaus, a geoscientist at the Scripps Institution […]
The Arctic has experienced the warming effects of global climate change faster than any other region on the planet. Scientists at the Scripps Institution of Oceanography have developed a new theory aided by computer simulations and observations that helps explain why this occurs. A team led by Scripps researcher Emma Beer observed the changes taking place […]
Mini-microplastics uncovered in the stomachs of filter-feeding marine organisms Nothing seems safe from plastic contamination. A new study by NSF-funded researchers at the Scripps Institution of Oceanography suggests there could be a million times more pieces of plastic in the ocean than previously estimated. Biological oceanographer Jennifer Brandon found some of the tiniest microplastics in seawater at much higher […]
For the first time, astronomers have detected a signal from stars emerging in the early universe. Using a radio antenna not much larger than a refrigerator, the researchers discovered that ancient suns were active within 180 million years of the Big Bang. The astronomers, from Arizona State University (ASU), the Massachusetts Institute of Technology (MIT) […]