Earth Science

Researchers have identified a second line of symmetry dividing Earth into halves with equal reflectivity along the 27° east and 153° west meridians. The finding, based on 25 years of satellite data, reveals unexpected balance in clear-sky albedo, cloud reflectivity and ice-free ocean coverage. It may connect to the El Niño-Southern Oscillation and affect future geoengineering plans.

June 02, 2026 由 AI 报道

Computer simulations have identified a previously unknown manganese-rich oxide that may have contributed to Earth's Great Oxygenation Event around 2 billion years ago.

In 2023, Hektoria Glacier on Antarctica's Eastern Peninsula retreated eight kilometers in just two months, marking the fastest such event recorded. Nearly half of the glacier broke apart due to its position over a flat underwater bedrock. The discovery, detailed in a new study, highlights vulnerabilities in other Antarctic ice features.

February 25, 2026 由 AI 报道

New data from the European Space Agency's Swarm satellites reveal that the South Atlantic Anomaly, a weak spot in Earth's magnetic field, has grown by nearly half the size of continental Europe since 2014. A region southwest of Africa is weakening even faster in recent years. This expansion highlights unusual activity in Earth's molten outer core.