Photomontage of the PS1 telescope atop Haleakala Maui with the star forming region of the Trifid Nebula (7500 light-years from Earth). PS1 has a 1.5 billion pixel camera and takes over 500 pictures per night. Sky image © 2011, PS1 Science Consortium. Telescope image by Rob Ratkowski © 2011, PS1 Science Consortium.