How Russia and Ukraine are placed after three years of fighting ahead of a possible three-day ceasefire proposed by Moscow.

A derelict Soviet-era spacecraft known as Kosmos 482 is set to hurtle back toward Earth after more than five decades in orbit ...

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

New aviation meteorology stations at the host airports - Seimchan, Oymyakon and Yakutsk - were organized by 1942. Auxiliary stations were set up along the route. Aerology sounding was used more ...