Two launches on the same date, 38 years apart. One started a human presence in orbit that has not been broken since. The other helped map the shape of Earth itself.
A Light That Did Not Go Out
Stardate 2080.4152 (OCTOBER 31, 2000)
On the morning of 31 October 2000, a Soyuz-U rose from Baikonur with William Shepherd, Yuri Gidzenko, and Sergei Krikalev aboard Soyuz TM-31. They were not the first people in orbit, and the station waiting for them was still only a modest pair of modules. What they began was quieter, and longer: a human presence in space that has not been broken since.
Two days later they would dock with Zvezda and open a hatch onto a home. The launch itself was the threshold. Fog hid the rocket for a moment, then it climbed into clear sky. From that morning, Earth has had people living above it, shift after shift, through every season since.
A Beacon for the Shape of Earth
Stardate 81.6963 (OCTOBER 31, 1962)
On 31 October 1962, a Thor-Ablestar carried ANNA 1B into orbit from Cape Canaveral. The name gathered four partners: Army, Navy, NASA, and Air Force. An earlier attempt in May had failed to reach orbit. This one did, settling near 1,100 kilometres up, a sphere a little under a metre across.
It was the first satellite built for geodesy. Flashing lights, timed in series, let cameras on the ground fix its place against the stars. Radio ranging and Doppler added other measures of the same quiet work: the strength and direction of Earth's gravity, the centre of its mass, and the true positions of places far apart. The flashes were brief. The map they helped draw has lasted.
In short
One launch put people above Earth to stay. The other gave us a better measure of the Earth beneath them.