The band might be best known for providing the theme song for "Friday Night Lights" and for a little conspiracy theory regarding 9/11. Feel free to Google it if you're into that sort of thing.
They are also one of the best post-rock bands out there and this album is some of their finest stuff.
Enjoy "Trembling Hands" from Explosions in the Sky. And be sure to check out the band on tour this summer. A little birdie tells me they're playing Lollapalooza.