upon arrival to harvard university was to ask my postdoc, laura dominik, to make a map of the field of spheres across the surveyed region. and so what she did is we knew how many spheres were found in each region from sophie's findings. and laura just assigned a yield to each region. she divided the number of retrieved spheres by the amount of mass of background material, volcanic ash that was collected in each share on which we document that. so she gave a weight to each run and then made a map of the region. each of these pixels in the map is roughly half a mile in size, and then what you see are in purple. oops is a very low yield of the background, far away from the meteor path. that's the purple color. and then a yellow implies twice as many spherules per retrieved mass. so indeed we see three, roughly three hotspots in this heat map where there the yield of spherules was doubled, presumably because of this meteor, because these three yellow regions are to the meteor path and far away we ended up with the standard background yield. and so that gave us assurance that we were at the

now, the other thing i did upon arrival to harvard university was to ask my postdoc, laura dominik, toe a map of the field of spheres across the surveyed region. and so what she did is we knew how many spheres were found in each region from sophie's findings. and laura just assigned a yield to each region. she divided the number of retrieved spheres by the amount of mass of background material, volcanic ash that was collected in each share on which we document that. so she gave a weight to each run and then made a map of the region. each of these pixels in the map is roughly half a mile in size, and then what you see are in purple. oops is a very low yield of the background, far away from the meteor path. that's the purple color. and then a yellow implies twice as many spherules per retrieved mass. so indeed we see three, roughly three hotspots in this heat map where there the yield of spherules was doubled, presumably because of this meteor, because these three yellow regions are to the meteor path and far away we ended up with the standard background yield. and so that gave us assura