vanguard-one

id: title: Vanguard 1 slug: vanguard-one date: 2020-07-17 5:00:00 AM format: Wikipedia Page url: https://en.m.wikipedia.org/wiki/Vanguard_1 duration:

A solar-powered satellite has been in orbit since 1958. It is the oldest man-made object in space, and circles the earth every 132 minutes. Its orbit characteristics still constitute valid experimental data.