This dimension names the wider program a spacecraft's mission was flown under. Wikipedia notes that reusable examples include "the SpaceX Dragon and the Space Shuttle orbiters," spacecraft that flew many separate missions across the life of their program. Browsing this way groups every spacecraft that flew under the same program.
Facts
Comparison
Field Origin Era Mission Of
Sources
1. Wikipedia: Luna 1
Wikimedia FoundationLuna 1, lead sectionQuote, Luna 1, lead section
was the first spacecraft to reach the vicinity of Earth's Moon, the first spacecraft to leave Earth's orbit, and the first to be placed in heliocentric orbit.
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