Tellus Science News Updates

  • Egyptian Mummy, Viking DNA Reveals How Cats Conquered WorldEgyptian Mummy, Viking DNA Reveals How Cats Conquered World
    Their trek from pest exterminator to pet. Like a boss Pexels Before cats conquered the internet, they conquered the world—with a little help from their human serfs. Domesticated cats live pretty much everywhere except Antarctica, and a new study in Nature Ecology and Evolution helps to uncover how they spread so far. DNA from the […]
  • Our Sun Might Have had an “Evil” TwinOur Sun Might Have had an “Evil” Twin
    The family isn’t close. Our sun might have been born with a non-identical twin. Dubbed Nemesis, it would have orbited the same point as our own star before wandering off into the galaxy. Nemesis has never been found, but a new analysis suggests that all stars—including our own—are born in pairs. NASA/GSFC/SDO Sunlike stars often […]
  • Flares May Threaten Planet Habitability Near Red DwarfsFlares May Threaten Planet Habitability Near Red Dwarfs
    This illustration shows a red dwarf star orbited by a hypothetical exoplanet. Credit: NASA/ESA/G. Bacon (STScI) › Full image and caption › Full image and caption”/> Cool dwarf stars are hot targets for exoplanet hunting right now. The discoveries of planets in the habitable zones of the TRAPPIST-1 and LHS 1140 systems, for example, suggest […]
  • Cassini Finds Saturn Moon May Have Tipped OverCassini Finds Saturn Moon May Have Tipped Over
    Cassini researchers have found evidence the active south polar region of Enceladus — the fractured terrain seen here at bottom — may have originally been closer to the icy moon’s equator. Credit: NASA/JPL-Caltech/ Space Science Institute › Full image and caption › Full image and caption”/> Saturn’s icy, ocean-bearing moon Enceladus may have tipped over […]
  • Scientists Propose Mining Moon to Reach MarsScientists Propose Mining Moon to Reach Mars
    By Gary Li, Ph.D. Candidate in Mechanical and Aerospace Engineering, University of California, Los Angeles, Danielle DeLatte, Ph.D. Student in Aeronautics & Astronautics, University of Tokyo, Therese Jones, Ph.D. Candidate in Public Policy, Pardee RAND Graduate School, Jerome Gilleron, Ph.D. Candidate in Aerospace Engineering, Georgia Institute of Technology, and Samuel Wald, Ph.D. Student in Aeronautics […]
  • Alaska Tundra Source of Early-Winter Carbon EmissionsAlaska Tundra Source of Early-Winter Carbon Emissions
    Winter sun setting over the tundra polygons in northern Alaska in November 2015. As winter sets in and snow settles, the soils take time to freeze completely and continue to emit carbon dioxide long into the new year. Credit: NASA/JPL-Caltech/Charles Miller › Larger view › Larger view”/> Warmer temperatures and thawing soils may be driving […]
  • These Conservatives Want to Convince You Climate Change RealThese Conservatives Want to Convince You Climate Change Real
    Understanding science doesn’t make you liberal Pexels “My co-author Paul Douglas has a saying liberals may not like,” said Republican Rev. Mitch Hescox. “Believing in science doesn’t make you a liberal; it makes you literate.” Hescox, a former coal industry engineer, heads the Evangelical Environment Network and is co-author of the book Caring for Creation: […]
  • Coral Bleaching Is Spreading on the Great Barrier ReefCoral Bleaching Is Spreading on the Great Barrier Reef
    The Great Barrier Reef has been at risk for a year now following a 2016 coral bleaching event, but new findings show that after yet another bleaching event, two thirds of the reef have been severely damaged. The bleaching, a product of warming waters, causes the healthy corals to lose their algae and turn a […]
  • NASA’s Cassini Mission Prepares for ‘Grand Finale’ at SaturnNASA’s Cassini Mission Prepares for ‘Grand Finale’ at Saturn
    NASA’s Cassini spacecraft, in orbit around Saturn since 2004, is about to begin the final chapter of its remarkable story. On Wednesday, April 26, the spacecraft will make the first in a series of dives through the 1,500-mile-wide (2,400-kilometer) gap between Saturn and its rings as part of the mission’s grand finale. “No spacecraft has […]
  • Dinosaurs Likely Originated in United KingdomDinosaurs Likely Originated in United Kingdom
    {By Pallab Ghosh, BBC News} This is one of the conclusions of the first detailed re-evaluation of the relationships between dinosaurs for 130 years. It shows that the current theory of how dinosaurs evolved and where they came from may well be wrong. This major shake-up of dinosaur theory is published in this weeks’s edition of the […]

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