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“This double-CME traveled through a region of space that had been cleared out by yet another CME four days earlier,” NASA says. ” As a result, the storm clouds
by theaeolist 12y ago
“This double-CME traveled through a region of space that had been cleared out by yet another CME four days earlier,” NASA says. ” As a result, the storm clouds were not decelerated as much as usual by their transit through the interplanetary medium.”
Just curious, what exactly was cleared out? I thought the interplanetary medium is just empty space.
- Qantourisc 12y agoThere are no absolutes in physics (well rarely any naturally curring anyway), space still has stuff in it. Even if it's just a small rock every kilo meter, that's still a lot of rocks. 149,597,870 rocks to be exact. (Assuming the number isn't wrong.) What was exactly cleared out I don't know though.
- thret 12y agoIt isn't empty, although it has a very low particle density. I assumed that 'clearing out' means the opposite, that the area now had a higher than normal charged particle density, and thus it was easier to pass through? I'm also curious if anyone can give a thorough explanation.