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1 godzinę temu · An 11-year sunspot cycle is half of a 22-year Babcock–Leighton dynamo cycle, ... All these satellites have observed the Sun from the plane of the ecliptic, and so have only observed its equatorial regions in detail. The Ulysses probe was launched in 1990 to study the Sun's polar regions. It first traveled to Jupiter, to "slingshot" into an ...
1 dzień temu · Dr. Stephen Vincent Strange is a character appearing in American comic books published by Marvel Comics.Created by Steve Ditko, the character first appeared in Strange Tales #110 (cover-dated July 1963). Doctor Strange serves as the Sorcerer Supreme, the primary protector of Earth against magical and mystical threats. Strange was introduced during the Silver Age of Comic Books in an attempt to ...
1 dzień temu · Ronald Wilson Reagan (/ ˈ r eɪ ɡ ən / ⓘ RAY-gən; February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th president of the United States from 1981 to 1989. He was a member of the Republican Party; his presidency constituted the Reagan era, and he is considered one of the most prominent conservative figures in American history.
