
Boosted to almost the speed of light, "killer electrons" can knock out computers, pierce spacesuits and damage the tissues of astronauts.
NASA's STEREO satellite captured the first images ever of a collision between a coronal mass ejection and a comet.
NASA's STEREO Mission is being presented in a new digital 3D film titled "3D Sun."
STEREO observed a nice gathering of solar prominences in profile as they twisted, stretched and floated just above the solar surface.
By combining images taken almost simultaneously from the Ahead and Behind STEREO spacecraft, researchers have generated a 3-D sequence of four images.
A total lunar eclipse, partly visible from every continent around the world, will occur on March 3, 2007.
NASA scientists can track solar storms from the sun to Earth using the latest images from NASA's STEREO spacecraft.
Listen in as members of the mission team discuss looking at solar storms in 3-D and the upcoming launch.
› Mission and Science Q&A
This interactive gallery highlights the best photos of STEREO's prelaunch processing.