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NASA InSight landing on Mars

The spacecraft will perfom a specific sequence of activities

On Nov. 26, NASA's InSight spacecraft will blaze through the Martian atmosphere and attempt to set a lander gently on the surface of the Red Planet in less time than "it takes to hard-boil an egg", according to a press release. InSight's entry, descent and landing (EDL) team, based at NASA's Jet Propulsion Laboratory in Pasadena, California, along with another part of the team at Lockheed Martin Space in Denver, have pre-programmed the spacecraft to perform a specific sequence of activities to make this possible.

The expected milestones for the spacecraft will be respected exactly as planned and engineers make no final changes the morning of landing day. Some milestones will be known quickly only if the experimental Mars Cube One (MarCO) spacecraft are providing a reliable communications relay from InSight back to Earth. The primary communications path for InSight engineering data during the landing process is through NASA's Mars Reconnaissance Orbiter and Mars Odyssey. Those data are expected to become available several hours after landing.

If all goes well, MarCO may take a few seconds to receive and format the data before sending it back to Earth at the speed of light. The one-way time for a signal to reach Earth from Mars is eight minutes and seven seconds on Nov. 26. Times listed below are in Earth Receive Time, or the time JPL Mission Control may receive the signals relating to these activities.

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