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Less than two minutes from launch mission control aborted the launch of the Pegasus rocket because of a communications problem between mission control and the flight crew on L-1011 aircraft.
This is after more than a year’s delay because of a difficult-to-pin-down problem with the Pegasus rocket itself.
They are presently working towards a second launch attempt tonight in about thirty minutes. You can follow this at the link above. Note that the NASA television feed is delayed about two minutes from the comment feed below. It is also filled with NASA’s incessant propaganda and pandering documentaries.
Pegasus has launched ICON and the first two stages have done their job. They are now coasting to the point where the third stage will fire. That coast is complete, the third stage has completed its job and ICON is in orbit.
This is Northrop Grumman’s second launch in 2019, so the leader rankings for the 2019 launch race remains unchanged:
6 Europe (Arianespace)
The U.S. however has regained its lead over China, 20 to 19, in the national rankings.