microwave laser
A Mysterious ‘Heatwave’ Blast From a Massive Star Was Detected on Earth
Only three such blasts have ever been detected by scientists, making them an extremely rare and weird phenomenon that can teach us about how stars form.
New and Improved Atomic Clocks Mean It's Time to Update Time
The latest system trims timekeeping errors to less 200 picoseconds over 25 days.
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