it is with deep, heartfelt sorrow. I address you here this afternoon at 11:40 a.m. This morning Space program experienced a national tragedy with the explosion of the space shuttle Challenger.

USA TODAY's page one with the Challenger space shuttle explosion on Jan. 29, 1986. Seventeen years after the Challenger disaster, another shuttle and its crew were lost in the skies above America ...

William R. Lucas, a NASA rocket scientist who helped shape the nation's first satellite as well as its first space station, ...

29, 1988, when Discovery lifted off from the space center. Seventeen years after the Challenger disaster, another shuttle and its crew were lost in the skies above America: The shuttle Columbia ...

The crewed shuttle mission for ... all seven crew members aboard Challenger, including teacher Christa McAuliffe, set to be one of the first “civilians” in space. A NASA investigation later ...

Read full article: INTERACTIVE: The NASA astronauts and employees who died in service to U.S. space ... the Space Shuttle Challenger. This marks 35 years since the Challenger disaster.

After working to improve the booster design and creating new management practices to improve safety, NASA relaunched shuttle flights on Sept. 29, 1988, when Discovery lifted off from the space center.

The man who led a NASA facility that shouldered much of the blame for the 1986 space ... Challenger's launch and witnessed the televised disaster in real time. A presidential commission charged with ...

The man who led a NASA facility that shouldered much of the blame for the 1986 space shuttle Challenger ... were watching the Challenger's launch and witnessed the televised disaster in real ...

It was the morning of Jan. 28, the day of the space shuttle Challenger disaster. Icicles formed on ... Solid Rocket Booster diagram side view. Shows positions of tang, clevis and O-rings.