Each spacecraft will launch collectively in fall 2025. They may every take barely completely different paths to Mars, and one will arrive in orbit across the pink planet a number of days after the opposite.
No area mission has ever despatched two orbiters to Mars on the similar time. By having two probes somewhere else round Mars, scientists will be capable of disentangle how a lot circumstances across the planet are shifting from second to second or from place to position. ESCAPADE can even be capable of use one probe to measure the photo voltaic wind because it is available in towards Mars, whereas the opposite watches how the planet’s ambiance responds at virtually the very same prompt.
“With ESCAPADE, we’re going to have the ability to do this for the primary time,” mentioned Robert Lillis, principal investigator for ESCAPADE and affiliate director for planetary science on the UC Berkeley House Sciences Laboratory. This could give scientists a clearer sense of trigger and impact in Mars’ atmospheric escape.
ESCAPADE is a part of NASA’s Small Modern Missions for Planetary Exploration (SIMPLEx) program, which goals to discover area extra cheaply in change for accepting larger danger. That sometimes means much less testing of the spacecraft and its techniques, much less built-in redundancy in case one thing goes unsuitable, and sooner growth timelines. The upshot is that ESCAPADE value lower than $80 million. For comparability, MAVEN, one other Mars orbiter that studied atmospheric escape and helped lay the groundwork for ESCAPADE, value greater than 5 instances that quantity to construct and launch.
“Extra science per greenback, bang in your buck, name it what you’ll,” mentioned Lillis, “We’re one of many guinea pigs.”
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