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 ...

Button mode allows you to disable the alarm by pressing the dial rather than relying on movement, but if you stay in bed it ...

The commercial astronauts onboard SpaceX’s Fram2 mission are flying closer to Earth’s poles than anyone has before, offering ...

The complex would be the most expensive and ambitious single project Roseland's Michigan Avenue has seen since non-Native ...