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What’s that green streak in front of the Andromeda galaxy? A meteor. While photographing the Andromeda galaxy in 2016, near the peak of the Perseid Meteor Shower, a sand-sized rock […]

https://mobile.twitter.com/esa/status/1028287440958771200

https://mobile.twitter.com/esa/status/1028257239927332864

https://mobile.twitter.com/esa/status/1028213515360841728

https://mobile.twitter.com/esa/status/1028210055693455361