![]() LightSail-2 Mission Shows Solar Sailing’s Potential for Spaceflight By KENNETH CHANG The spacecraft’s controllers on Earth succeeded in steering the spacecraft, demonstrating that mylar sails used for propulsion. Published: July 30, 2019 at 07:00PM via NYT Science https://ift.tt/2LRdej9
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![]() And Now, a Bicycle Built for None By CADE METZ It’s not the first self-driving bike. But equipped with an A.I. chip, it may be the nearest to thinking for itself. Published: July 30, 2019 at 07:00PM via NYT Science https://ift.tt/31927p0 ![]() How Does a Male Black Widow Find a Mate? Follow the Other Guys By KNVUL SHEIKH Competition among these male spiders is fierce. So suitors take advantage of clues left by their reproductive rivals. Published: July 30, 2019 at 07:00PM via NYT Science https://ift.tt/2SVyK6J ![]() A New Way to Fight Crop Diseases, With a Smartphone By KNVUL SHEIKH A hand-held device could help farmers identify blighted plants, and perhaps reduce agricultural losses. It’s a like strep test for tomatoes and tubers. Published: July 29, 2019 at 07:00PM via NYT Science https://ift.tt/2ZoilKE ![]() When Mega-Tsunamis Drowned Mars, This Spot May Have Been Ground Zero By ROBIN GEORGE ANDREWS The 75-mile wide crater could be something like a Chicxulub crater for the red planet. Published: July 29, 2019 at 07:00PM via NYT Science https://ift.tt/2MuGGLn ![]() Toby Walsh, A.I. Expert, Is Racing to Stop the Killer Robots By CLAUDIA DREIFUS Autonomous weapons, capable of acting without human oversight, are closer than we think, Dr. Walsh believes, and must be banned. Published: July 29, 2019 at 07:00PM via NYT Science https://ift.tt/2YdOIPF ![]() NASA’s TESS Satellite Spots ‘Missing Link’ Exoplanets By DENNIS OVERBYE Halfway through its first tour of the local universe, the spacecraft has found a “Super Earth” and two “sub-Neptunes.” Published: July 28, 2019 at 07:00PM via NYT Science https://ift.tt/2GAw75z ![]() Wanted: Old Chimney, Suitable for Roosting By C. CLAIBORNE RAY Chimney swifts in search of homes eventually may have to return to hollows in big, broken trees. But there probably aren’t enough of them. Published: July 28, 2019 at 07:00PM via NYT Science https://ift.tt/2YnPMf6 ![]() Bending It Like Bamboo By SIOBHAN ROBERTS and GABRIELA PORTILHO Weaver and artist Alison Grace Martin uses non-Euclidean geometry to explore a flexible plant’s architectural potential. Published: July 28, 2019 at 07:00PM via NYT Science https://ift.tt/2MxhdRx ![]() The Southern Delta Aquarids Meteor Shower Will Peak in Night Skies By NICHOLAS ST. FLEUR Also called the Aquariids, the shower can light up night skies from dusk to dawn, and if you’re lucky you might be able to see it. Published: July 28, 2019 at 07:00PM via NYT Science https://ift.tt/2MmAdlx |
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