As scientists get closer to putting humans on Mars, the need to understand why clocks tick faster on the red planet is more ...
Astronomers observe for the first time the actual motion of spirals in a protoplanetary disk, revealing gravitational ...
The clock is so reliable that it would be off by less than a second if it had started running 100 million years ago, researchers say. A new atomic clock is one of the world’s best timekeepers, ...
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