Last-minute glitch de­lays launch to sun

The Charlotte Observer (Sunday) - - Nation & World -

A last-minute tech­ni­cal prob­lem Satur­day de­layed NASA’s un­prece­dented flight to the sun. The early morn­ing launch count­down was halted with just one minute, 55 sec­onds re­main­ing, keep­ing the Delta IV rocket on its pad with the Parker So­lar Probe.

Rocket maker United Launch Al­liance said it would try again Sun­day, pro­vided the he­lium-pres­sure is­sue is re­solved. As soon as the red pres­sure alarm for the gaseous he­lium sys­tem went off, a con­troller or­dered, “Hold, hold, hold.”

Once on its way, the Parker probe will ven­ture closer to our star than any other space­craft.

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