I probably should know the answer, since I took my Part 107 exam earlier this year.
I live and fly in Class D airspace surrounding KLUK. Normally, I get LAANC approval within a minute or so. Last night around 10pm I wanted to fly to see if I could catch any of the Aurora. At night, apparently the KLUK tower is closed and the space is Class E. When I requested LAANC approval, I got no response.
My question: Do I need approval to in Class E airspace?

I live and fly in Class D airspace surrounding KLUK. Normally, I get LAANC approval within a minute or so. Last night around 10pm I wanted to fly to see if I could catch any of the Aurora. At night, apparently the KLUK tower is closed and the space is Class E. When I requested LAANC approval, I got no response.
My question: Do I need approval to in Class E airspace?