How the Space Shuttle Challenger Disaster Unfolded

On January 28, 1986, the tenth mission of the space shuttle Challenger ended in tragic disaster. We remember the seven astronauts who lost their lives that day, including Christa McAuliffe, who was chosen by NASA to pioneer its Teacher in Space program.

Learn about the Iran-Contra Affair under President Reagan who secretly supported an anti-Communist group in Nicaragua and funneled weapons to Iranian terrorists in exchange for American hostages. Discover how Lt. Col. Oliver North was found guilty.

Although they are sometimes complicated, hand gestures and signs are an easy way for gang members to identify one another.

As Hitler’s influence extends beyond Germany and darkness descends across Europe, his hateful rhetoric fuels anti-Jewish persecution and, ultimately, genocide. See more in this clip from Season 1, Episode 7, “Darkness Falls.” New episodes Mondays at 8/7c.