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Jul 20, 2009 · 1957: Sputnik 1 orbit the Earth. 1957: Laika became the first dog to be launched into orbit aboard Sputnik 2 spacecraft. Laika died during the flight.
This is a timeline of space exploration which includes notable achievements, first accomplishments and milestones in humanity's exploration of outer space. This timeline generally does not distinguish achievements by a specific country or private company, as it considers humanity as a whole.
When humanity first made plans to send probes and people into space in the mid-20th Century, the issue of contamination came up.
On Feb. 17, 1998, Voyager 1 became the most distant human-made object in existence when — at a distance of 69.4 AU from the Sun — it “overtook” Pioneer 10. On Dec. 16, 2004, Voyager 1 reached the termination shock and entered the heliosheath .
Nov 3, 2023 · Yuri Gagarin from the Soviet Union was the first human in space. His vehicle, Vostok 1 circled Earth at a speed of 27,400 kilometers per hour with the flight lasting 108 minutes. Vostok's reentry was controlled by a computer.
1 million years ago. Did changes in the Earth's orbit make us intelligent? Human intelligence was born in the Great Rift Valley of East Africa, as our ape ancestors evolved increasingly bigger...
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v. t. e. Yuri Alekseyevich Gagarin[a][b] (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who, aboard the first successful crewed spaceflight, became the first human to journey into outer space. Travelling on Vostok 1, Gagarin completed one orbit of Earth on 12 April 1961, with his flight taking 108 minutes.
