5 SEPTEMBER 1977: VOYAGER 1 LAUNCHES!

by @sciencemug

Today, in 1977, NASA probe Voyager 1 launches from Kennedy Space Center.

Its twin Voyager 2 launches before it, on August the 20th 1977, but Voyager 1 is "1" 'cause it's going to reach Jupiter and Saturn first.

42 years later these two probes-grannies are still alive and kicking... In the interstellar space!

Indeed Voyager 1 becomes the first piece of humanity to reach interstellar space on August 2013, followed by Voyager 2 on November 2018!