zooniverse/WISE — pull request #30 by barentsen (2014-01-30 19:20:16+00:00)
Title: "For a star to be a debris disk" => "For a star to have a debris disk"

I'm being überpedantic here, so feel free to ignore, but whilst taking the tutorial I got distracted by the sentence

"For a star to be a debris disk..."

which should probable be

"For a star to have a debris disk..."

Nice project though :-)