Glossary term: Apollo
Description: There are two meanings of the word Apollo in astronomy. The first refers to the Apollo program that put the first human beings on the surface of the Moon. These missions were mostly powered by the Saturn V rocket. In total there were 21 missions launched: 6 missions were crewed and 15 uncrewed. On the other hand, a family of near-Earth asteroids is also known as Apollo. This group of asteroids is characterized as having a semi-major axis greater than the Earth–Sun distance of 1 astronomical unit.Related Terms:
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Term and definition status: This term and its definition is still awaiting approval
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Apollo 11 lunar activityCaption: NASA astronaut Edwin 'Buzz' Aldrin installs a seismometer in front of the Apollo 11 Eagle lunar lander during an extravehicular activity (EVA) on the Moon. Neil Armstrong shot this photo during the first human mission to the surface of the Moon in 1969.
Credit: NASA/Project Apollo Archive credit link
License: PD Public Domain icons