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

|Fewer Letters|More Letters| |-------|---------|---| |ESA|European Space Agency| |ICBM|Intercontinental Ballistic Missile| |Isp|Specific impulse (as explained by Scott Manley on YouTube)| | |Internet Service Provider| |JPL|Jet Propulsion Lab, California| |MON|Mixed Oxides of Nitrogen| |NTR|Nuclear Thermal Rocket| |RTG|Radioisotope Thermoelectric Generator|

|Jargon|Definition| |-------|---------|---| |Raptor|Methane-fueled rocket engine under development by SpaceX|

^(8 acronyms in this thread; )^(the most compressed thread commented on today)^( has 10 acronyms.)
^([Thread #8521 for this sub, first seen 6th Feb 2023, 21:02]) ^[FAQ] ^([Full list]) ^[Contact] ^([Source code])