Sun’s Galactic Journey Shaped Earth’s Climate | Science News

New research reveals Earth’s climate may have been shaped by cosmic forces — the Sun’s galactic journey and its explosive youth. As the solar system passed through dense galactic clouds, the heliosphere may have shrunk, exposing Earth to harsh interstellar conditions and triggering ancient ice ages. Evidence from deep-sea sediments and Antarctic snow supports this theory. Meanwhile, another study explains how early Earth stayed warm despite a dimmer Sun: powerful solar flares may have triggered chemical reactions that produced nitrous oxide, a potent greenhouse gas, helping maintain liquid water and possibly kickstarting life. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/ed54a64570e2c77e