Tumbling Boulders Leave Trails on the Moon

There's probably a great story in this image, if only someone was there to witness it as it happened! This is an image from Moon Zoo, the citizen
science project from the Zooniversethat asks people to look at images from the Lunar Reconnaissance Orbiter and search forcraters, boulders and more. And often, the Zooites find some very interesting features on theMoon, like this one and the ones below that include tracks from rolling, bounding, tumbling and sometimes bouncing boulders. Then the task for the scientists is to figure out what actually happened to get these boulders moving — was it an impact, are the boulder on the bottom of a hill, or was it some other unknown catalyst? As Zooniverse founder Chris Lintott says, "The Moon has its own landscape that is really quite dramatic, so it’s a world well worth exploring."

LRO image from Moon Zoo.

Why look for tumbling boulders? Moon Zoo scientist Dr. Katie Joy gave this explanation:
"One of the main reasons we are asking Moon Zoo users to search for scars left behind by tumbling boulders is to help support future lunar exploration initiatives. Boulders that have rolled down hillsides from crater walls, or massifs like the Apollo 17 landing site, provide samples of geologic units that may be high up a hillside and thus difficult to access otherwise by a rover or a manned crew vehicle. If mission planning can include traverses to boulders that have rolled down hills, and we can track these boulders back up to the part of hillside from where they have originated, it provides a neat sampling strategy to accessing more geological units than would have been possible otherwise… Thus we hope to use Moon Zoo user data to produce a map of known boulder tracks (and terminal boulders) across the Moon."

LRO image from Moon Zoo of boulder tracks.

If you want to join in on the fun of looking for mysteries on the Moon, check out Moon Zoo, or the Zooniverse for more citizen science projects where you can get involved in helping scientists do real science.

Source: universetoday

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