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What to know about the Caesars, the gigantic truck-mounted artillery units France sent Ukraine
The 19.5-ton vehicles can shoot and scoot.
We’re getting closer to understanding why the sea sometimes glows
A chance encounter with a rare phenomenon called a milky sea connects a sailor and a scientist to explain the ocean’s ghostly glow.
Why the US Army wants an ‘aerial tier network’ for better communications
Mountains and other natural obstacles can make talking to one another hard. Drones and other aircraft could help.
Accessible at-home COVID tests are on their way
Disability communities have been vocal about the barriers to COVID testing. Now there's a new option.
Why Microsoft is rolling back its AI-powered facial analysis tech
Plus, here's what Facebook and Zoom have been doing in this problematic field.
See inside Glen Canyon Dam as Lake Powell levels drop
The hydropower plant that powers about a quarter of a million homes is run by a team of mechanics, electricians and more.
The world’s largest hybrid ship will set sail in 2024
With an 11.5-megawatt-hour battery system, the 639-foot Saint-Malo will ply the waters between France and England.
Ever heard of giant bacteria? This new species is way bigger and weirder.
A newly discovered bacteria challenges the rules of cells, puzzling microbiologists.
How Apple wants to kill those annoying CAPTCHA tests
It's a fascinating solution to the annoyance of clicking on images to prove you are not a bot.
Do you need a daily multivitamin? Probably not, says national health task force.
Exercising and eating well do more for your health than vitamin supplements.