The 'Doomsday Clock' is now 85 seconds to midnight — the closest it's ever been. What scientists say this means for humanity and how the time is determined.

The clock is a symbolic way to show the public how close scientists believe the world is to a human-made apocalypse.
News24

Atomic scientists move Doomsday Clock to closest point to catastrophe in history

The “Doomsday Clock”, representing how near humanity is to catastrophe on Tuesday, moved closer than ever to midnight as ...
Phys.org

Strontium optical lattice clock exhibits record-high coherence time

Optical lattice clocks are emerging timekeeping devices based on tens of thousands of ultracold atoms trapped in an optical lattice (i.e., a grid of laser light). By oscillating between two distinct ...
EurekAlert!

MIT physicists improve the precision of atomic clocks

Vladan Vuletić with members of his Experimental Atomic Physics group. From left to right: Matthew Radzihovsky, Leon Zaporski, Qi Liu, Vladan Vuletić, and Gustavo Velez. Every time you check the time ...