NASA 's Ionospheric Connection ##s mission , originally scheduled for 2017 , has been delayed until spring 2019 at the earliest because of problems with a Pegasus XL rocket . The rocket has been hampered by issues with its separation system and off - nominal data that led to launches in late 2017 , January 2018 and November 2018 being abandoned . Northrop Space Innovation ##s , which built the rocket , said it is working to resolve the issue , but provided no specific details .
NASA's Ionospheric Connection Explorer mission, originally scheduled for 2017, has been delayed until spring 2019 at the earliest because of problems with a Pegasus XL rocket. The rocket has been hampered by issues with its separation system and off-nominal data that led to launches in late 2017, June 2018 and November 2018 being abandoned. Northrop Grumman Innovation Systems, which built the rocket, said it is working to resolve the issues, but provided no specific details.