Space/Science — HabitableZone

Space/Science » in reply to Venus, ISS and the Moon at 21:36 CET!!

As an astronomer.....

I have to ask you if you can explain what this is flying over the earth at amazing speed. Towards the end of this short NASA clip; it comes back into view for a bit, then zips off. Sattelites don't move this fast, do <they?>

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