Cascadia Expeditions' Brett Gallagher and civil engineer Tyler Deboodt photographed in the entrance to Snow Dragon minutes before sunset in July 2013. Says McGregor, he wouldn't be surprised if the cave was destroyed by 2016. Once skylights form, air flows through the cave at an accelerated rate, which weakens the caves' structure and causes them to collapse.

Explorer Brent McGregor shares stunning photographs of glacier caves discovered within the Sandy Glacier on Oregon’s Mount Hood.

For girls in rural Yemen, just getting permission to go to school can be an obstacle. Here, first-graders sit five to a bench. Classrooms often number 150 students to one teacher.

Photographer Laura Boushnak celebrates success stories in women’s education across the Arab World.

For “New Books of Knowledge” (2009) Dettmer reveals geographic images to show this encyclopedia as a landscape.

Image courtesy of the artist and Packer Schopf.

To create new art, sculptor Brian Dettmer cuts up old books. See a gallery of his intricate, breathtaking creations.

There is no "after Ferguson" | Photo: Jon Lowenstein

In advance of the grand jury verdict, photojournalist Jon Lowenstein talks about what he saw in Ferguson, Missouri. With photos and video.

Photo by Iwan Baan

On three tiny islands in central Japan, stunning natural beauty lives side by side with some of the world’s best contemporary art and architecture. See 10 photos by Iwan Baan.

TED’s presented our share of near-misses and might-never-happen tech demos — including, depending on how you count, at least 5 flying cars.

“'Nothing replaces the loss of a son, not even another son.’

Safia Abo Zour, 25, holds her five-month-old baby, Mohammed, with one hand and holds with the other the sweater her older son, also named Mohammed, wore the last time he went to kindergarten. Mohammed had just turned four years old when he was killed during the second war in Gaza in 2011 after an airstrike on his family's house in the Al Zaitoun neigborhood. Safia named her new baby after his brother." -- Eman Mohammed

Portraits by photojournalist Eman Mohammed.