We should have listened. 

Constants is created by Sean Heyboer.

Discovery of Neptune is performed by Anita Woods, Ivan Soto, Jiovanni Huberd, Devyn Boer, Kristan Johns, Rina Divata, Ryan Messcher, Reeko Brooks, Genny Sherard, John Crane, Frank Gugliemelli, Josh Lewis, Behcah, Ryan Duugleby, Rukshin Shaher and Tee Kay. 

Doorway (Theme from Constants) is performed by Quiet Theory.

Music in this episode by Shane, Apparently.

Follow Constants on Twitter: @constantspod