> *(Mars doesn't really do terminal velocities.)* It depends on many factors, bu... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		Florin_Andrei on Oct 22, 2016 \| parent \| context \| favorite \| on: Mars Reconnaissance Orbiter views Schiaparelli lan... > (Mars doesn't really do terminal velocities.) It depends on many factors, but as an order of magnitude terminal velocity on Mars is about 1000 km/h (speed of sound on Earth at sea level). https://spaceflightsystems.grc.nasa.gov/education/rocket/ter...

titzer on Oct 22, 2016 [–]

That's if you were to start from velocity zero (e.g. fall off a balloon). If you start from orbital velocity, you have to slow down to terminal velocity, which takes a very long time.

Consider applying for YC's Summer 2026 batch! Applications are open till May 4
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact