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Thursday, Feb 25, 2021
“Planet Earth Report” provides descriptive links to headline news by leading science journalists about the extraordinary discoveries, technology, people, and events changing our knowledge of Planet Earth and the future of the human species. Until Recently, People Accepted the ‘Fact’ of Aliens in the Solar System, reports Scientific American –For centuries, right up until the […]
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Annotated image was taken by a parachute-up-look camera aboard the protective back shell of NASA’s Perseverance rover during its descent toward Mars’ Jezero Crater on February 18, 2021. Credit: NASA/JPL-Caltech This annotated image was taken by a parachute-up-look camera aboard the protective back shell of NASA’s Perseverance rover during its descent toward Mars’ Jezero Crater […]
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In 1964 two Aerobee suborbital rockets were launched with the goal of mapping x-ray sources in the sky. Each rocket contained a directed Geiger counter, so that as the rocket rotated at the peak of its trajectory to measure the direction of x-ray sources. The project discovered eight x-ray sources, including a particularly bright one […]
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Turbulent disk of gas churning around a black hole. Credit: NASA’s Goddard Space Flight Center/Jeremy Schnittman A new theoretical study has proposed a novel mechanism for the creation of supermassive black holes from dark matter. The international team find that rather than the conventional formation scenarios involving ‘normal’ matter, supermassive black holes could instead form […]
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Are conservatives more afraid of threats than liberals? Political psychologists have long found evidence that people on the right are more sensitive to scary stuff, on average, than people on the left, a basic psychological difference thought to drive some political disagreements between the two groups. But new research suggests that’s overly simplistic. In a […]
Read MoreHigh in the Himalayas, a four-to-five-day trek from the nearest village, sits an unassuming glacial lake called Roopkund. The spot is beautiful, a dollop of jewel-toned water amid rough gravel and scree, but hardly out of the ordinary for the rugged landscape — except for the hundreds of human bones scattered within and around the […]
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Researchers led by the University of Iowa have produced direct observational evidence that massive galaxies in the early universe were fed by cold gas pipelines that survived despite hotter surroundings and allowed these galaxies to form stars. Credit: Hai Fu, University of Iowa To come into being, galaxies need a steady diet of cold gases […]
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After NASA’s Mars Perseverance rover landed on the Red Planet last week, Thomas Zurbuchen, associate administrator of the agency’s Science Mission Directorate, asked the question: “Who’s going to compose the first piece of music with Mars sound?” So I did. NASA has released a “firehose of data” from Perseverance’s landing, including videos, images and audio […]
Read MoreThis article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Benjamin Brubaker, Postdoctoral Fellow in Quantum Physics, University of Colorado Boulder Nearly a century after dark matter was first proposed to explain the motion of galaxy clusters, physicists still have no idea what it’s made of. Researchers around […]
Read MoreThis article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Kathryn Ross, PhD Student, Curtin University Natasha Hurley-Walker, Radio Astronomer, Curtin University Radio images of the sky have revealed hundreds of “baby” and supermassive black holes in distant galaxies, with the galaxies’ light bouncing around in unexpected ways. […]
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