Ace Frehley's deep space ode to his wang goes up against Europe's synth-fueled astronaut anthem in the second round of our Rock Star Wars tournament, and you decide the winner.

To try and fill our days between now and the new Star Wars: The Force Awakens movie, we’ve tracked down 32 space-themed classic rock songs and paired them off against each other in a series of intergalactic battles. The field will be halved every week based on your votes, until only the spaciest song in rock history is left.

The great thing about space is that it's vast enough to do just about anything, and that goes for space rock, too — witness "Rocket Ride," which made its first appearance on the studio side of Kiss' 1977 Alive II LP, and uses space travel as a metaphor for gettin' it on. Europe's "The Final Countdown," meanwhile, offers a far more serious (and literal) take on humans unshackling themselves from our planetary tether. Two sides of the final frontier, as it were.

Both songs had an impressively easy time of it in the opening round, with "Rocket Ride" soaring past the Kinks' "Supersonic Rocket Ship" to the tune of nearly 70 percent of the vote while "The Final Countdown" piled up more than 66 percent at the polls in its fight against Iron Maiden's "Starblind."

Now these two heavyweights go head to head. Which will emerge victorious from this round? It’s your choice. You can listen to both tracks below, and vote once per hour in each of the this round’s Rock Star Wars battles until polls close on Nov. 30 at 11:59PM ET. Your choice for our Rock Star Wars champion will be revealed on Dec. 22, 2015.

Watch Kiss Perform 'Rocket Ride'

Watch Europe Perform 'The Final Countdown'

See the Top 100 Rock Albums of the ‘70s