Science is part of how America became America, Neil deGrasse Tyson says in a video.
In the video, posted in April 2017, Tyson delivers what he says might be his most important message ever: America — stop messing around.
C'mon! We put a man on the moon! We invented the internet! And yeah, we've never been a perfect county. Every era had challenges. Tyson recalls the '60s and '70s: Vietnam, the civil rights movement, the Cold War.