weather system Archives

Tracking the origins of speedy space particles

NASA’s Time History of Events and Macroscale Interaction during Substorms (THEMIS) spacecraft combined with computer models have helped track the origin of the energetic particles in Earth’s magnetic atmosphere that appear during a kind of spa…

Hotspots in fountains on the sun’s surface help explain coronal heating mystery

GREENBELT, Md. — Observations from NASA’s Solar Dynamics Observatory (SDO) and the Japanese satellite Hinode show that some gas in the giant, fountain-like jets in the sun’s atmosphere known as spicules can reach temperatures of millions of deg…