Remember...

02. of February, 2003 is one of the darkest day of space exploration.
It has been four years ago when the Space Shuttle Columbia has broken in pieces while its STS-107 mission were coming home, and lost 7 people. They worked for humankind, we were waiting them home, but nothing left behind them but shock, and deep silence.
Remember them:

Rick D. Husband, Commander
William C. McCool, Pilot
Michael P. Anderson, Payload Commander
David M. Brown, Mission Specialist 1
Kalpana Chawla, Mission Specialist 2
Laurel Blair Salton Clark, Mission Specialist 4
Ilan Ramon, Payload Specialist 1