资讯

Sound as we know it does not exist in space. That’s because ... a tiny piece of space junk could smash a hole through the side of a spacecraft! On 20th July 1969, Neil Armstrong was the first ...
when the bright 'train' of objects entered into view," Netherlands-based satellite tracker Marco Langbroek told Space.com in 2019 via email. "They were brighter than I had anticipated." ...