I use ear plugs then put on nose cancelling headphones.

Complete silence. I didn’t hear the crying baby that was screaming for the 10 hour flight until the last hour lol.

There’s definitely other life out there, but given a basic understanding of space and light speed travel, there is a zero chance we’ve made contact with non Earth life. The government has a direct benefit in claiming aliens or UFOs when testing their super military tech so our enemies are mislead on our militaries capabilities.

Like when trump posted a classified satellite image. Our population and all other governments had no idea we were capable of such clear satellite surveillance.