Were Twin Towers felled by chemical blasts? (Update)

A mix of sprinkling system water and melted aluminium from aircraft hulls likely triggered the explosions that felled New York's Twin Towers on September 11, 2001, a materials expert has told a technology conference.

McAfee warns of hacker threat to autos

Cars made smarter with Internet technology are zooming into perilous hacker territory, according to a report by US computer security giant McAfee.

SpaceX company fixes Dragon capsule problem (Update)

Flight controllers managed to gain control of a commercial craft carrying a ton of supplies for the International Space Station after it ran into thruster trouble shortly after liftoff, but the earliest the Dragon capsule ...

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