First Mode senior systems engineer Mallory Lefland is part of the team that will be monitoring the entry, descent and landing of NASA’s Perseverance rover from the Jet Propulsion Laboratory in Pasadena, Calif. (NASA Photo / Bobak Ferdowsi)

Veteran spacecraft engineer Chris Voorhees has witnessed six Mars landings in the course of his career, and he’s playing a role in the next one as president of a Seattle-based engineering firm called First Mode.

But even though First Mode has been helping NASA ensure that its Perseverance rover will get to the surface of Mars safely on Thursday, Voorhees will experience it in the same way millions of others around the world will: from home, watching a live stream via YouTube.

At least

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