Leap seconds have helped keep clocks synchronized with Earth’s rotation, but their time is now over – here’s why
300 glaciers have disappeared from the American West since the mid‑20th century – the survivors have a few things in common
Read More 6 minute read Space South African telescope detects record‑breaking signal from the early universe Thato Manamela, University of Pretoria and Roger P. Deane, Inter-University Institute for Data Intensive Astronomy; University of Cape… byThato ManamelaJune 17, 2026