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The Soviet Vega 1 begins returning images of Halley's Comet and the first images of its nucleus.
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Soviet Union
Country in Eurasia (1922–1991)
The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 until it dissolved in 1991. During its existence, it was the largest country by area, extending across eleven time zones and…Source: Wikipedia (CC BY-SA)
Vega 1
Soviet mission to Venus and Halley's Comet (1984–1987)
Vega 1 was a Soviet space probe, part of the Vega program. The spacecraft was a development of the earlier Venera craft. They were designed by Babakin Space Centre and constructed as 5VK by Lavochkin at Khimki. The name VeGa (ВеГа) combines the first two letters from the Russian…Source: Wikipedia (CC BY-SA)
Halley's Comet
Short-period comet visible every 75–77 years
Halley's Comet is the only known short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years, though with the majority of recorded apparitions occurring after 75–77 years. It last appeared in the inner parts of the Solar System in…Source: Wikipedia (CC BY-SA)