Category: Science & Tech

Pyroprocessing is a way to change a solid material physically or chemically using high temperature. It is a dry process and very energy-intensive. The three sectors that use it most are cement-making, metallurgy, and nuclear power. Of these, cement-making uses pyroprocessing the most. First, finely ground limestone, clay and iron — the raw materials —...

For much of modern history, human evolution was thought to progress in linear fashion, with one species replacing another, one by one. The famous ‘ape turning to human’ cartoon illustrating a stooped primate gradually straightening into a modern man essentially captures this idea. That picture began to change in the second half of the 19th...

NASA on Friday (June 5, 2026) ordered astronauts to take shelter after a fresh leak was detected aboard the International Space Station. The five astronauts moved into the SpaceX capsule that is docked at the station while cosmonauts worked to fix the leak, which is on the Russian side of the orbiting laboratory. The decision was...

Astronauts aboard the International ​Space Station ⁠were ordered by NASA to shelter in their ‌spacecraft and prepare for potential ‌evacuation on Friday (June 5, 2026) as ‌a ⁠Russian crew ⁠attempts to fix a worsening leak of air ​on its portion ‌of the orbital laboratory, NASA said. The four astronauts of ‌NASA’s Crew-12 mission ​on the...

Industrial salt pans threaten Sambhar Lake’s survival Sambhar Lake is India’s largest inland saltwater wetland. When they analysed satellite data from 1984 to 2023, scientists found the lake depends heavily on seasonal rain, with water levels peaking in late summer and shrinking significantly in the dry season. Between 2022 and 2023, the lake’s surface also...