Military strikes on Iran's nuclear facilities and Tehran's criticism of the IAEA threaten to undermine the credibility and ...

Military strikes on Iran's nuclear facilities and Tehran's criticism of the IAEA threaten to undermine the credibility and ...

“The optical clock community is strongly motivated to obtain the best possible set of measurements before the SI second is ...

Rubidium holdover clocks must be designed to operate autonomously for months or years without human intervention. However, its long-term stability is affected by component ageing and environmental ...

Researchers at the Leibniz Institute of Photonic Technology (Leibniz IPHT) in Jena, Germany, together with international ...

Iran's more than 400 kg of uranium enriched to up to 60% purity are enough, if enriched further, for nine nuclear weapons, ...

IAEA chief Rafael Grossi warns that Iran could resume uranium enrichment within months, despite recent US and Israeli airstrikes. While Iran doesn't c ...

A new method uses helium droplets combined with ultrashort laser pulses to trigger chemical reactions in a controlled way.

Time travel has long been a staple of science fiction, captivating imaginations with the possibility of moving through time ...

Those who keep up on current events know that talk of nuclear war continues today, and that’s why “Two Minutes to Midnight and the Architecture of Armageddon,” a new exhibit about the Doomsday Clock ...

The idea of a particle that races faster than light has long fascinated physicists. Known as the tachyon, it was originally ...

Culture editor Alison Flood rounds up the New Scientist Book Club's take on our latest read, a time-travelling romance ...