A more precise definition of the second is crucial to all sorts of physical measurements – but to get there, scientists have to pack up their extraordinarily fragile optical clocks and take them on to ...

After years of NASA and private crews returning to Earth near Florida, the company shifted its landing zone to the West Coast ...

True Anomaly, which was founded in 2022, bills Jackal as an autonomous orbital vehicle — "a multi-role spacecraft with a modular architecture that delivers cost-effective, scalable performance and ...

Atomic clocks are the basis upon which a second is defined. But there is a new kid on the block, the optical clock, which ...

British startup Pulsar Fusion has unveiled Sunbird, a space rocket concept designed to meet spacecraft in orbit, attach to them, and carry them to their destination at breakneck speed using nuclear ...

Promising review: "This is a great idea to get kids involved and learn about days of the week, months, the weather, events, ...

It's that time of the year when we trade an hour of sleep for an extra hour of daylight, and these simple switches will make ...

Nathan Huixiang Zhang, now 52, got an alarm clock as a seven-year work anniversary gift in Canada ... "It popularized the ...

On the hunt for more restorative rest? Check out these spring deals on Wirecutter-approved mattresses, pillows, and more—and ...

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China is rapidly expanding its military capabilities in space, seeking the ability to destroy American satellites in a future conflict, according to a new intelligence report from the U.S. Space Force ...

Chicago Plan Commission Share Plans for a new residential high-rise in Fulton Market were approved Thursday by the Chicago Plan Commission. The project will join a surge of new development in the ...