On this day in 1945 - February 23rd - Ukranian astronomer Svetlana Gerasimenko was born.

Gerasimenko was the co-discoverer of comet 67P/Churyumov–Gerasimenko, the comet which was studied by the Rosetta mission. Both the Rosetta spacecraft and the lander Philae are on the comet as it continues its orbit.