NASA has delayed the launch of Space Shuttle Endeavour, which was scheduled for 3:47 p.m. EDT on Friday.
The holdup is apparently due to concerns over an auxiliary power heater. NASA broke the bad news in a tweet and stated that the delay would last at least 48 hours.
President Obama and his family, as well as Rep. Gabrielle Giffords were scheduled to attend this afternoon’s launch.
NASA tweeted that the Endeavour's launch would take place "no earlier than Monday at 2:33 p.m. EDT."
NASA will be hosting a news conference on the delay at 4PM Friday. Watch live here.
Endeavour's launch has been scrubbed for at least 48 hours because of an issue with Auxiliary Power Unit 1 heaters.
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