Twitter and M.I.T. have teamed up to launch the Laboratory for Social Machines to analyze the impact of social media messages on society. Larry Greenemeier reports

Astronomers have discovered one of the largest and most complex organic molecules yet in a gaseous star-forming region of interstellar space. Clara Moskowitz reports

Drivers in a simulator reacted slowly to sudden traffic emergencies regardless of whether they were thumbing texts into smartphones or dictating them to Google Glass. Larry Greenemeier reports