60 years in orbit for ’grapefruit satellite’ – the oldest human object in space, by Alice Gorman
▻http://theconversation.com/60-years-in-orbit-for-grapefruit-satellite-the-oldest-human-object-
Sixty years ago, a grapefruit-sized aluminium sphere with six antennas and some tiny solar cells was launched into Earth orbit. The Vanguard 1 satellite is still up there and is the oldest human-made object in space. It’s our first piece of space archaeology.