On this day 35 years ago, seven astronauts aboard the Space Shuttle Challenger — Ellison S. Onizuka, Mike Smith, Christa McAuliffe, Dick Scobee, Greg Jarvis, Ron McNair and Judy Resnik — died when the spacecraft exploded and broke apart 73 seconds into its launch. *** The MacNeil/Lehrer NewsHour devoted its entire show on Jan. 28, 1986, to cover the tragedy and honor the victims. Here's part of that remembrance. | PBS NewsHour

On January 28, 1986, the NASA space shuttle Challenger exploded 73 seconds after lift-off from Cape Canaveral, killing all seven crew members. It has been called the worst moment in the history of the American space program. #9News | 9 News

On Jan. 28, 1986, the space shuttle Challenger exploded 73 seconds after liftoff from Cape Canaveral, killing all seven crew members, including schoolteacher Christa McAuliffe. This is original Eyewitness News coverage from that day. What are your memories of that sad day in American history? | ABC7NY

Space Shuttle Challenger broke apart 73 seconds after launch. Today we remember seven crew members whose lives were taken during the disaster. | WESH 2 News

On January 28, 1986, the Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members aboard. | AARP Arizona

FROM THE ARCHIVES: Today marks 33 years since the Space Shuttle Challenger exploded, killing all seven crew members on board. “It happened just over one minute into flight,” NBC’s Dan Molina reported that day on NBC Nightly News with Lester Holt. “From mission control: silence.” | NBC Nightly News with Tom Llamas