Here's What I Learned as the U.S. Government's UFO Hunter

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January 19, 2024

Extraterrestrial Life Here's What I Learned as the U.S. Government's UFO Hunter A forthcoming investigational report from an office of the Pentagon has found no evidence of aliens, only allegations circulated repeatedly by UFO claim advocates By Sean Kirkpatrick

Astrophysics Why 2024's Total Solar Eclipse Will Be So Special The last time North Americans caught a total solar eclipse, the sun was in a lull of activity. This year's eclipse will be very different By Meghan Bartels

Animals Cute Little Tardigrades Are Basically Indestructible, and Scientists Just Figured Out One Reason Why Tardigrades are microscopic animals that can survive a host of conditions that are too extreme to ever occur on Earth—and scientists want to learn their secrets By Meghan Bartels

Weather What's Behind the 'Arctic Blast' Plunging into the U.S.? This week's cold snap across the U.S. will be one of "the most impressive Arctic outbreaks of this century," one climate scientist says By Meghan Bartels

Genetics Ancient DNA Reveals Origins of Multiple Sclerosis in Europe A huge cache of ancient genomes spanning tens of thousands of years reveals the roots of traits in modern Europeans By Sara Reardon,Nature magazine

Astrophysics Bizarre Dark Object Could Be First-Known 'Empty' Galaxy from the Early Universe A serendipitously discovered object nearly as massive as the Milky Way appears to be made of primordial gas that has formed almost no stars By Jonathan O'Callaghan

Animals Four New Octopus Species Discovered in the Deep Sea Enigmatic octopuses that have been newly discovered in the waters off Costa Rica add to a growing registry of deep-sea dwellers By Ashley Balzer Vigil

Astronomy Earth's Wobble Wreaks Havoc on Astronomers--And Astrologers, Too Our planet's precession is scarcely noticeable during anyone's lifetime, but across history, it has had enormous effects By Phil Plait

Space Exploration Ailing Peregrine Moon Lander Is on Course to Crash into Earth Peregrine will likely burn up in Earth's atmosphere, the moon lander's builder has said By Tariq Malik,SPACE.com

Animals How Does the World's Largest Seabird Know Where to Fly? Wandering albatrosses navigate thousands of miles using "the voice of the sea." By Joseph Polidoro | 08:31

Space Exploration NASA's Moon Program Faces Delays. Its Ambition Remains Unchanged If successful, the Artemis program promises to revolutionize travel to other celestial bodies. But many more tests of hardware remain By Michael Greshko

Mathematics Math Explains Why Your Friends Are More Popular Than You The inspection paradox makes sense of social networks, long train wait times and why the call center is always busy  By Jack Murtagh

BRING SCIENCE HOME Suck It Up--with Cooling Air! What warms up... See how you can make liquid defy gravity using just temperature differences!  Credit: George Retseck You may know many objects expand (or get bigger) when they get hot and shrink when they cool down. For example, this is true for metals, wood and concrete. But did you know that gases do the same? It is just difficult to see when it happens. This activity will let you "see" air contract using water!

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