Pakistanis walk on an island that emerged off the coastline of the Arabian Sea following a deadly magnitude 7.7 earthquake in Pakistan's southern province of Baluchistan on Sept. 24. Gwadar local government office/AP hide caption

itoggle caption Gwadar local government office/AP

Party On: Legislation passed last week allows the Federal Helium Reserve to continue selling the stockpiled gas. Above, Jonathan Trappe launches his 370-balloon craft from Caribou, Maine, in an attempt to cross the Atlantic Ocean on Sept. 12. Alexandre Ayre/Barcroft Media/Landov hide caption

itoggle caption Alexandre Ayre/Barcroft Media/Landov

A wildfire burns in Prescott, Ariz., on June 18. The fire covered nearly 11 square miles of the Prescott National Forest. Todd Tamcsin/AP/American Red Cross hide caption

itoggle caption Todd Tamcsin/AP/American Red Cross

"Bees are vital to the pollination and production of our fruits and vegetables ... unfortunately, they're all in trouble" — Marla Spivak James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED

Aerial view of Biosphere 2, where Jane Poynter lived for two years and 20 minutes. Courtesy of Jane Poynter hide caption

itoggle caption Courtesy of Jane Poynter