Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

|Fewer Letters|More Letters| |-------|---------|---| |Roscosmos|State Corporation for Space Activities, Russia| |SLS|Space Launch System heavy-lift| |SRB|Solid Rocket Booster| |STS|Space Transportation System (Shuttle)|

^([Thread #8452 for this sub, first seen 19th Jan 2023, 16:24]) ^[FAQ] ^([Full list]) ^[Contact] ^([Source code])