Next Launch · Tracking Live
The Soviets detonate the largest thermonuclear weapon ever — 50 megatons, shockwaves circling the Earth three times. The test shaped arms-control treaties that followed.

Every second, these spacecraft move farther from Earth. Distances extrapolated from JPL Horizons data.
Voyager 1 launched in 1977 and is now the farthest human-made object. Pick any date since — see where it was.
LOCATING…