In 1960 – With a crew of two, the bathyscaphe Trieste, descended 10,911 meters in the Pacific Ocean into Challenger Deep in the Mariana Trench near Guam, the deepest known point in the oceans.
In 2003 – Earth lost communication with space probe Pioneer 10 which was 12 billion-kilometers from Earth.
Like Tech History? Purchase Tom Merritt’s Chronology of Tech History at Merritt’s Books site.