It might seem surprising to think about an item staying in space for that long, but the oldest satellite still in orbit—Vanguard 1—turned 60 in 2018.
想到一件物品在太空中停留那么久似乎令人惊讶,但目前仍在轨道上的最古老的卫星——先锋1号——在2018已年满60岁。
It might seem surprising to think about an item staying in space for that long, but the oldest satellite still in orbit—Vanguard 1—turned 60 in 2018.
想到一件物品在太空中停留那么久似乎令人惊讶,但目前仍在轨道上的最古老的卫星——先锋1号——在2018已年满60岁。
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