http://www.newsweek.com/parker-solar-probe-launch-nasa-mission-touch-sun-delayed-1069409

NASA has delayed the launch of the ground-breaking Parker Solar Probe, which will travel closer to the Sun than any other man-made object.

Parker was set to take-off from Cape Canaveral, Florida, aboard a United Launch Alliance Delta IV Heavy rocket at 4:28 a.m. EDT on Saturday. However, the launch was put on hold just two minutes before lift-off as officials investigated an alarm related to a technical fault.