Spacewalking astronaut loses mirror outside the ISS, adding to ‘space junk’ in orbit around Earth
There are an estimated 170 million pieces of so-called ‘space junk’ – left behind after missions that can be as big as spent rocket stages or as small as paint flakes – in orbit alongside some US$700 billion (£555bn) of space infrastructure. But only 22,000 are tracked, and with the fragments able to travel at … Read more