19 Photos - Aug 2, 2012
Photo: Amazing shot of a Fire Rainbow by Ken RotbergPhoto: Photo: Earth the big blue marblePhoto: BRISTOL, ENGLAND - AUGUST 06:  A balloonist prepares a balloon for flying as hot air balloons prepare to take to the skies over Bristol city centre to launch the Bristol International Balloon Fiesta on August 6, 2012 in Bristol, England. The early morning flight of over twenty balloons over the city was organised as a curtain raiser for the four-day Bristol International Balloon Fiesta which starts on Thursday. Now in its 34th year, the Bristol International Balloon Fiesta is Europe's largest annual hot air balloon event in the city that is seen by many balloonists as the home of modern ballooning.  (Photo by Matt Cardy/Getty Images)Photo: Orion NebulaPhoto: SYDNEY, AUSTRALIA - JULY 24:  Ewan Donnachie of Australia competes in the 2012 Shark Island Challenge Final at Shark Island, near Cronulla on July 24, 2012 in Sydney, Australia.  (Photo by Matt King/Getty Images)Photo: KilaueaPhoto: Wish I was here...oh wait, I am. - #mothernature  Photo: Photo: Arctic Melt PondPhoto: This California park may get overshadowed by its famous neighbors, but you won't want to miss a chance to see one of the world's oldest living trees or a stunning waterfall.  http://mnatu.re/V4jWhC

#nationalparksmonday  Photo: #wordlesswednesday  Photo: Sunset over Vermont's migratory bird paradise.

The sun goes down over the Cranberry Pool wetland on Sept. 25 at the Missisquoi National Wildlife Refuge, located on the northeast side of Vermont's Lake Champlain in Franklin County.

Established in 1943, the 6,729-acre refuge serves as an important stop for migratory songbirds and waterfowl looking to feed, rest and breed along its stretch of quiet waters and wetlands. The protected area also features Shad Island, the site of the largest rookery of great blue herons in Vermont.Photo: Mt. VesuviusPhoto: Smoky MountainsPhoto: Mt. BakerPhoto: European AlpsPhoto: Mt. RanierPhoto: Mt. Fitzroy