Well it looks like the sky was cut in two on Guam yesterday on June 19 2014. Perfect picture!
Anticrepuscular rays are best explained by this great website. The photo and description were found on Reddit. Because redditors believed the first picture was fake. This is the second evidence photo. WOW!
Bravo, Jabuuty671!
I saw that sky and my friend took a picture with my phone. It was amazing. I’d like to share it, but not sure how I can attach a photo here.