atomic clock

Scientists have made a baffling discovery: the Earth's spin is accelerating. In fact, the Earth is spinning faster than ever recorded.

Spin So Hard

Seriously — scientists say we may need to cut an entire second out of the year.

The Earth is Spinning So Fast, We Might Need to Skip a Second

Scientists are preparing to use an ultra-precise atomic clock to hunt oscillations of dark matter several orders of magnitude smaller than ever before.

The Hunt Continues

Scientists are pitting their most precise tools against extremely elusive particles.

Ultra-Precise Atomic Clocks May Be Able to Detect Oscillations of Dark Matter

NASA just activated its Deep Space Atomic Clock (DSAC), starting off its year in Earth's orbit after launching in June.

Deep Space GPS

NASA's new atomic clock could allow autonomous spacecraft to navigate deep space.

NASA Officially Activates Its "GPS for Deep Space"

Deep Space Stopwatch

In space, no one can hear you ask for directions.

NASA is Launching a GPS System for Space

Two (or more) telescopes are far better than one.

Telecommunications Networks Could Help Scientists Sync Up Telescopes

Because losing a nanosecond a month is just too much to bear.

The Length Of a Second is Being Redefined

Scientists Create Most Expensive Material on Earth, Costs $4.2 Billion per Ounce