Compared to contemporaries like the American F-4 Phantom II, the MiG-21 was less complex and far cheaper to produce—but could ...

Soviet leader Josef Stalin's legacy includes mass purges and executions. Statues of him in Russia came down decades ago, but ...

In the 1970s, the USSR used nuclear devices to try to send water from Siberia's rivers flowing south, instead of its natural ...

Kosmos-482, a failed mission to Venus from the former Soviet Union that stalled in Earth orbit in the 1970s, is about to fall back to our planet. Exactly where or when it will strike, however, remains ...

Launched in 1972, the failed Venus probe has been stuck in Earth orbit ever since. Now it's hurtling back down to Earth.