Launches
ON RECORD18MISSIONS
16 of them succeeded. The earliest was in 1961 and the latest in 2025.
MARKED ON THIS DATE
1961 · 65 years ago today
Gagarin
Yuri Gagarin completed one orbit aboard Vostok 1 and became the first human being in space.
read more1981 · 45 years ago today
The first Space Shuttle flight
Columbia flew STS-1 with John Young and Robert Crippen aboard, the first orbital spacecraft flown crewed on its maiden flight.
read moreARCHIVE // DAY OF YEAR
18 launches flew on April 12, the earliest of them in 1961, and 16 of them succeeded. Wikipedia lists 4 spaceflight and astronomy events on April 12. Pick another date to see what happened on it.
18MISSIONS
16 of them succeeded. The earliest was in 1961 and the latest in 2025.
4ENTRIES
Spaceflight and astronomy entries from Wikipedia for this date, oldest first, starting in 1961.
0IMAGES
There's no Astronomy Picture of the Day we can show for this date.
1961
Aboard Vostok 1, Soviet cosmonaut Yuri Gagarin performed the first human spaceflight, completing one orbit of Earth in 108 minutes.
Vostok 1 ↗1961
Space Race: The Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first crewed orbital flight, Vostok 1.
Space Race ↗1985
Space Shuttle Discovery launches on STS-51D to deploy two communications satellites.
Space Shuttle Discovery ↗Astronomy and spaceflight books for a general reader. No textbooks.
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LISTING
Sagan's tour of the universe and how we came to understand it. It keeps the science in.
LISTING
Sagan's case for people leaving Earth one day, and an honest look at how hard that would be.
LISTING
A science-fiction novel from the author of The Martian, built around solving one engineering problem after another.
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LINKS AMAZON.COM
Event text and thumbnails come from Wikipedia and are used under CC BY-SA 4.0. Images come only from Wikimedia Commons, which doesn't accept non-free content. Each thumbnail links to its file page, which lists its licence and author.
Launch records are from The Space Devs’ Launch Library 2. Pictures are NASA’s Astronomy Picture of the Day. Many of them belong to the photographer or a partner agency, so we only show the ones credited to NASA alone.