NASA captures unprecedented images of supersonic shockwaves

NASA has captured unprecedented photos of the interaction of shockwaves from two supersonic aircraft, part of its research into developing planes that can fly faster than sound without thunderous "sonic booms".

Siemens, Alstom raise doubts about mega merger

Confidence that the politically sensitive merger of their rail businesses would be waved through by the European Commission was ebbing at both Siemens and Alstom Thursday.

page 12 from 40