I remember this study! It caused huge controversy in Sweden.

The phd student who conducted it trawled through students' Facebook pages and took their profile photos (without consent). Then he had a jury of 74 teenagers rate the photos on a scale from 1 to 10. Then he tried to correlate beauty with grades for distance or in-class education. De-anonymizing the data was trivial so everyone could pretty much see how the jury had rated each profile photo. And research data is public.

It was a seriously weak study with questionable methodology and a too low effect-size to draw any conclusions anyway. So no reason to get alarmed if you are ugly. :)