Netflix has released a trailer for Challenger: The Final Flight, a four-part docuseries from executive producer J.J. Abrams that examines the 1986 Challenger space shuttle, which tragically broke apart 73 seconds after launch as millions of Americans -- many of them schoolchildren -- watched live on television. Rather than dwell on the tragedy, the series aims to celebrate the lives of the astronauts onboard, offering an in-depth look at one of the most diverse crews NASA has ever assembled. That crew included high school teacher Christa McAuliffe, who was selected to be the first private citizen in space. I …