Launches
ON RECORD26MISSIONS
25 of them succeeded. The earliest was in 1958 and the latest in 2025.
ARCHIVE // DAY OF YEAR
26 launches flew on December 18, the earliest of them in 1958, and 25 of them succeeded. Wikipedia lists 5 spaceflight and astronomy events on December 18. Pick another date to see what happened on it.
26MISSIONS
25 of them succeeded. The earliest was in 1958 and the latest in 2025.
5ENTRIES
Spaceflight and astronomy entries from Wikipedia for this date, oldest first, starting in 1958.
0IMAGES
There's no Astronomy Picture of the Day we can show for this date.
1958
The United States launched SCORE (rocket pictured), the world's first communications satellite.
SCORE (satellite) ↗1966
Epimetheus, one of the moons of Saturn, was discovered, but was mistaken for Janus; it took twelve years to determine that they are two distinct objects sharing the same orbit.
Epimetheus (moon) ↗1973
Soviet Soyuz Programme: Soyuz 13, crewed by cosmonauts Valentin Lebedev and Pyotr Klimuk, is launched from Baikonur in the Soviet Union.
Soyuz programme ↗1999
NASA launches into orbit the Terra platform carrying five Earth Observation instruments, including ASTER, CERES, MISR, MODIS and MOPITT.
NASA ↗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.