Vanishing Insects, Rusty Rivers & NASA’s Next Moonshot – Science News Roundup (Sept 22–23, 2025)
Flying insect populations have dropped over 70% in remote mountain regions, a study links the decline to rising temperatures. NASA named its 2025 astronaut class and previewed the Artemis II crewed Moon mission for 2026. Astronomers observed a supernova’s exposed silicon layer, confirming theories of element formation. A protein tied to brain inflammation rises years before Alzheimer’s symptoms, offering a possible early detection marker.