The calls started coming into 6abc around 6:15 a.m.
Viewers contact Action News from Montgomery, Bucks and Chester counties in Pennsylvania; Camden and Cape May counties in New Jersey; and New Castle County, Delaware.
Astronomer Derrick Pitts of the Franklin Institute told Action News that the light was from the SpaceX launch.
According to SpaceX, there was a launch at 6:01 a.m. at Kennedy Space Center in Florida. This launch was the ninth launch and landing of Falcon 9 first stage booster.
If you saw the light from the launch and would to submit your photo or video with Action News, please send it to us at 6abc.com/Share.