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On this day in 1968, Senator Robert F. Kennedy spoke in Indianapolis, Indiana just hours after the assassination of Dr. Martin Luther King, Jr. Speaking without notes on the back of a flatbed truck to a largely African American crowd, he quoted the poet Aeschylus: "In our sleep, pain which cannot forget falls drop by drop upon the heart until, in our own despair, against our will, comes wisdom through the awful grace of God." | CBS Mornings

Sixty years ago today, U.S. President John F. Kennedy gave his famous Moon speech at Rice University. "We choose to go to the Moon in this decade and do the other things," he said, "not because they are easy, but because they are hard." Seven years later, the first humans set foot on another world. Would you choose to go to the Moon if given the chance? | The Planetary Society