Coronal mass ejection
From SGCommand
A Coronal mass ejection is an ejection of plasma from the corona of a star.
The coronal mass ejection from the star of P4X-639 was used to activate the Time loop machine. (SG1: "Window of Opportunity")
The star in the Lantean system produces a larger coronal mass ejection than our own star. Every 15,000 years, the ejection of the star is large enough to devastate the planet Lantea.
[edit] History
15,000 years ago, the Lantean ship Adaris was hit by the ejection. The radiation killed most of the crew, but the captain sent the ship through hyperspace to Atlantis to warn the Lanteans about the coronal mass ejection. Atlantis used its three ZPMs to expand the sheild to cover a significant porion of the planet, thus saving most of it. When the Atlantis expedition encountered one, they used the one ZPM to strengthen the Daedalus' shield and intercepted the coronal mass ejection. (ATL: "Echoes")
