Russia has attacked the Ukrainian city of Kharkiv with bombs, missiles and drones, killing at least three people. Meanwhile, Kyiv and Moscow are expected to swap 500 prisoners of war this weekend.

The spacewalk occurred just months after the first-ever spacewalk by Soviet cosmonaut Alexei Leonov, on March 18, 1965. Gemini IV: Inside NASA's First Spacewalk Mission (Photos) — Gallery ...