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1 out 1935 ano - David Dunlap Observatory

Descrição:

this was the first canada telescope and what it discovered was the first evidence of black holes.

Adicionado na linha do tempo:

space satalite every mission/manned mission

17 jun 2021

1

0

234

Data:

1 out 1935 ano

Agora

~ 90 years ago

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