SpaceNASA says Columbia crew had no chance to survive The shift from what appeared to be a normal descent on 1 Feb 2003 into disaster happened so fast that the crew didn't have time to close their visors ¿ìè¶ÌÊÓÆµ
SpaceSpace elevator trips could be agonisingly slow A space elevator's rise could trigger dangerous wobbles in the elevator cable; slowing the ascent to three weeks is one possible fix ¿ìè¶ÌÊÓÆµ