Tom Brokaw

Challenger’s shocking explosion devastates the families of the crew as well as millions watching live, and an investigation puts NASA on the defensive.

The new Space Shuttle program captivates America and draws a diverse, determined crop of astronauts. But safety issues arise out of public view.

Bill Clinton’s presidency began and ended with controversy spanning from an inability to reform America’s health care system to a sex scandal that led to impeachment.

A look at TV shows from the ’90s, from animated hits “South Park” and “Beavis and Butt-Head” to sitcoms “Seinfeld” and “Friends”” to dramas “My So-Called Life” and “The Sopranos.”