If you mean NASA’s Artemis II mission , Orion is expected to reach about 17,500 mph to stay in Earth orbit, and it can hit around 25,000 mph on the way back during reentry. It should take about 3 minutes to reach space and about 8 minutes to reach orbit.

Quick Scoop

  • To reach space: about 3 minutes.
  • To reach orbit: about 8 minutes.
  • Orbit speed: about 17,500 mph.
  • Reentry speed: up to 25,000 mph.

Context

Artemis II is the crewed lunar flyby mission, so its speed changes a lot during the flight: it accelerates hard after liftoff, then later builds up enough velocity to head toward the Moon.

One-line answer

So, in plain English: Artemis does not go one single speed — it ranges from about 17,500 mph in Earth orbit to roughly 25,000 mph on return, depending on the phase of the mission.

If you want, I can also give you the speed in km/h or explain why it needs to go that fast.