two of the men came back, orville anderson and albert stevens, they did come back for this second flighteet. they took measurements about the stratosphere and about cosmic about, you know, anything they could possibly measure. to do it while they were up in the gondola. they took an image of the curvature of the earth, which had never been done. they were recognized for their efforts. they were, you know, given medals by fdr, and it was a success, a noller round success. what makes it even better for rapid city is that it happened in the black hills. itwas here, it was local, so was just a great community involved piece of history. involved piece of history. >> next on our visit to rapid city, we take you to the south dakota air and space is he him and hear about the role of ellsworth air force base during the cold war. >> welcome to the south dakota air and space museum. people think about south dakota, they don't always think about a great aviation state, but we have a huge aviation heritage in this state. over the years, we have played a huge part in our national defense. ellsworth ai

two of the men came back, that was orville anderson and albert stevens. they did both come back for this second flight. and they hit a height of 72,395 feet. they took measurements about the stratosphere and about cosmic radiation and about anything they could possibly measure, they attempted to while they were up in the gondola. they took an image of the curvature of the earth, which had never been done. they were recognized for their efforts. they were, you know, given medals by fdr. it was just a success, an all-around success. but what makes it even better for rapid city is that it happened in the black hills. it was here. it was local. and so it was just a great community involved piece of history. >> our city tour staff traveled to rapid city, south carolina, to learn about its rich history. to watch more video from rapid city and other stops on our tour visit cspan.org/citiestour. you're watching american history tv all weekend, every weekend, on c-span3. >>> artist harvey pratt shares his vision for the national native american veterans memorial i