NASA Solar Probe Mission Officially Underway

A NASA mission that will come closer to the sun than ever before is officially underway.  

The Parker Solar Probe was launched atop a United Launch Alliance Delta Four Heavy rocket Sunday from Cape Canaveral on Florida's Space Coast at 3:31 a.m. Eastern time.  

Liftoff had been scheduled for Saturday morning, but the countdown was halted at the last minute by a helium pressure issue.  

The Parker Solar Probe is designed to fly through the sun's super-hot corona to study the solar wind and sun storms.


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