[abc]Parker Solar Probe: NASA's touch the sun trip delayed at last minute
Full story:
http://www.abc.net.au/news/2018-08-1...inute/10109934

A last-minute technical problem on Saturday delayed NASA's unprecedented
flight to the sun.
Key points:

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 on Sunday
(local time), provided the helium pressure issue can be resolved quickly.

As soon as the red pressure alarm for the gaseous helium system went
off, a launch controller ordered, "Hold, hold, hold".

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

..... more ....

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