4 ms·
> Engines running for long time ? Not with chemical rockets. Perhaps you meant "engines sitting idle for years in interplanetary space, and then restarting rel
by tuatoru 4y ago
> Engines running for long time ?
Not with chemical rockets. Perhaps you meant "engines sitting idle for years in interplanetary space, and then restarting reliably".
- s1artibartfast 4y agoReally depends on the mission profile. If you are refilling in space for a "short" burn, it could still be longest in human history.