The first man on the moon received tributes Sunday from the president and fellow space pioneers Buzz Aldrin, John Glenn, and Michael Collins. “Neil was among the greatest of American heroes—not just of his time, but of all time,” Obama said. “When he and his fellow crew members lifted off aboard Apollo 11 in 1969, they carried with them the aspirations of an entire nation.” Glenn echoed the president’s sentiments, saying, “When I think of Neil, I think of someone who for our country was dedicated enough to dare greatly.”