NASA and Northrop Grumman have postponed today’s (Nov. 7)  launch attempt of NASA’s Ionospheric Connection Explorer, or ICON, mission due to off-nominal data observed on the Pegasus XL rocket, during the captive carry flight. The L-1011 Stargazer carrier aircraft returned to Cape Canaveral Air Force Station in Florida and the team will begin an investigation into the issue. The ICON spacecraft remains healthy. The team is evaluating the next launch attempt.

We're launching ICON from Florida early in the morning on Nov. 7th to study Earth's dynamic interface to space! See the pre-launch news feature here: https://go.nasa.gov/2SPdQpy

Set your alarm or stay up late! Live NASA TV coverage will begin at 11:45 pm Pacific [2:45 a.m. ET] on Nov. 6th, with a 90 minute launch window opening at 12:05 am November 7th at https://nasa.gov/live