Re:Pristine meteorite found within hours of hitting Earth
by ericbarrett on Tuesday November 22, 2022 @11:01AM
(#33707166)
Even faster than that! Meteors have a relative velocity between 11 and 71 km/s (40,000-255,000 kph). Anything faster than that would be interstellar, which is uncommon but not unheard of.
Re:Pristine meteorite found within hours of hitting Earth
by perihelions on Tuesday November 22, 2022 @11:32AM
(#33707590)
Pedantically, the lower limit of velocity relative to low-orbiting satellites is around 3 km/s. The 11 - 71 km/s figure is relative to the ground.
Re:Pristine meteorite found within hours of hitting Earth
by dekhn on Tuesday November 22, 2022 @08:15PM
(#33713827)
https://www.nasa.gov/mission_pages/stardust/mission/index-ae... (but that's for comets)
Detecting, then catching a small object, in space, traveling at 10-20 thousand kilometers per hour.
Much easier to go out to an asteroid. https://en.wikipedia.org/wiki/OSIRIS-REx