Quantum physics has quietly been rewriting the rulebook on matter, and the latest breakthroughs suggest that the so‑called ...
India’s caesium fountains are among the only 12 that exist worldwide. Meet the timekeepers at the Indian Standard Time Metrology Division of the NPL in Delhi who keep them running.
For 2026, the other full supermoons using the original definition will happen on Nov. 24 and Dec. 24 but only the Dec. 24 ...