Respect for the casualties, and heroes of early human space exploration. Gus Grissom, Ed White and Roger Chaffee (Apollo-1), Pjotr Dolgov (soviet Space Jump experiment), Vladimir Komarov (Soyuz-1), Vladislav Volkov, Georgi Dobrovolski, Viktor Patsayev (Soyuz 11), Michael J. Smith, Dick Scobee, Ronald McNair, Ellison Onizuka, Christa McAuliffe, Gregory Jarvis, Judith Resnik (SS Challenger), Rick D. Husband, William C. McCool, Michael P. Anderson, Ilan Ramon, Kalpana Chawla, David M. Brown, Laurel Blair Salton Clark (SS Columbia) RIP.