Astronomy Picture of Day: Aurora from Space# Astronomy - 天文
s*t
1 楼
Aurora From Space
Credit: Don Pettit, ISS Expedition 6, NASA
Explanation: What do auroras look like from space? From the ground, auroras dance high
above clouds, frequently causing spectacular displays. The International Space Station (ISS)
orbits just at the same height as many auroras, though. Therefore, sometimes it flies over
them, but also sometimes it flies right through. The auroral electron and proton streams are
too thin to be a danger to the ISS, just as clouds pose li
Credit: Don Pettit, ISS Expedition 6, NASA
Explanation: What do auroras look like from space? From the ground, auroras dance high
above clouds, frequently causing spectacular displays. The International Space Station (ISS)
orbits just at the same height as many auroras, though. Therefore, sometimes it flies over
them, but also sometimes it flies right through. The auroral electron and proton streams are
too thin to be a danger to the ISS, just as clouds pose li