WASHINGTON — Atomic scientists on Tuesday kept their “Doomsday Clock” set as close to midnight as ever before, citing Russia’s actions on nuclear weapons amid its invasion of Ukraine, nuclear-armed ...

Learn how Albert Einstein’s theory reveals that time on Mars runs faster than on Earth — and why that tiny shift matters for ...

Despite a 2024 so far marked with serious conflicts, climate uncertainty and the rapid ascension of AI technologies, the famous Doomsday Clock has remained paused at 90 seconds to midnight, the same ...

Einstein explained that gravity affects each passing second. Clocks slow down where gravity grows stronger. Clocks speed up ...

An atomic clock that could transform deep-space travel has successfully completed its first test run in space. NASA’s Deep Space Atomic Clock, which launched on a satellite in June 2019, outperformed ...

Scientists built a tiny clock from single-electron jumps to probe the true energy cost of quantum timekeeping. They discovered that reading the clock’s output requires vastly more energy than the ...

If midnight is a metaphor for the end of the world, we’re just ninety seconds away, according to the Bulletin of the Atomic Scientists. The Bulletin of the Atomic Scientists’ Science and Security ...

The time is nigh for nuclear clocks. In a first, scientists have used a tabletop laser to bump an atomic nucleus into a higher energy state. It’s a feat that sets scientists on a path toward creating ...

Scientists want to increase their understanding of circadian rhythms, those internal 24-hour biological clock cycles of sleeping and waking that occur in organisms, ranging from humans to plants to ...

The hypothetical clock's hands mark our nearness to annihilation. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Doomsday is as close today as ...