Those of us old enough to remember know exactly where we were when the Space Shuttle Challenger exploded ... who helped design the solid rocket boosters at the Morton Thiokol plant in Utah.

William Lucas, a key NASA figure during the 1986 Space Shuttle Challenger disaster ... blaming the booster rockets' "faulty ...

Jan. 28, 2021, marked the 35th anniversary of the space shuttle Challenger accident that claimed all seven lives on board in 1986. This photo provided by NASA shows the crew of space shuttle ...

Icons of space flight they undoubtedly are, but the shuttle programme has been marked by very public tragedy. On 28 January 1986, Challenger was set to carry the first American civilian into space.

Thirty years ago on January 28, seven astronauts were killed when the Challenger space shuttle exploded just 73 seconds after launch. One of those seven astronauts was Christa McAuliffe.