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insight has been fantastically

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successful we've gotten more science

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than we had ever dreamed that we would

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get during the course of this mission

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insight's primary goal was to better

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understand how the terrestrial planets

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the rocky planets

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formed and evolved

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first we landed an incredibly sensitive

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seismometer on the surface of mars and

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with that we are able to record over

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1300 mars quakes and these range all the

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way from tiny little tumblers that just

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barely go over the noise background to a

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handful of quakes that were larger than

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magnitude four and feeling those

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vibrations the scientists can actually

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take that information and use that to

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reconstruct all the material that those

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mars quakes traveled through and thereby

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see the interior of the planet

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we looked at its core which is

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big and not very dense we looked at its

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mantle which is

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not so hot and we looked at its crust

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which is

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not too thick and not too dense compared

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to some of our pre-mission expectations

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by measuring

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the

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planet looked like

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four and a half billion years ago

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the other thing that we've been able to

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do is make a very detailed

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record of the weather at mars

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we have a really good weather station

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which has allowed meteorologists to

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study the the weather at the at the

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insight landing site and relate that to

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the climate changes on mars

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what we didn't do unfortunately was make

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the heat flow measurement we wanted to

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make our heat flow probe was supposed to

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get three to five meters down and we

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were unable to reach that depth but we

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were able to get some of those

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measurements such as the heat transfer

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amongst the soil

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insight is a solar powered mission we

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have solar panels and they were designed

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to give us enough power to easily get

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through the first two years but there's

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a lot of dust in mars atmosphere and

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that's falling down on top of our solar

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arrays and slowly blocking the sun

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as the panels are getting dustier we

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started racking our brains with whether

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there's anything we can do to try to

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clean off those panels ourselves when

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the idea of using dirt to clean the

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solar arrays was first proposed it

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seemed counter-intuitive we were

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actually able to use the arm and the

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scoop to scoop up some soil from the

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ground and dump it over the lander

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having some of that heavier sand blow

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onto the arrays and knock some of the

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dust off so we essentially used it as an

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array cleaning tool cleaning with dirt

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actually worked it allowed us to

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actually keep the instruments going

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during the low power season where the

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the mars is farthest from the sun during

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the winter

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unfortunately later in the summer we

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think that the power is going to be

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dropping so quickly due to

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the atmosphere getting dustier due to

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the alignment of mars in the sun we're

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going to be at a point where we can no

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longer have all of our instruments on

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which means we'll be turning off the

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seismometer and other instruments on

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board the last day is going to be

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bittersweet

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obviously we're preparing for it we know

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it's coming

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but that first moment where we don't

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hear from the lander when we expect to

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that's going to be tough

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it's left a permanent mark on me i

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literally tattooed insight onto my arm

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i'll never let it go

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we've really rewritten sort of the the

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chapter of the encyclopedia on the

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interior of mars

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that was our last big hole in our

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understanding of the planet

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there's a lot of data that people are

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going to be looking at for decades to

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come we accomplished so many of our