Next week marks the 60th anniversary of the historic climb of Mt Everest.
On 29 May 1953 Sir Edmund Hillary and Sherpa Tenzing Norgay reached the top of Mt Everest.
Pictured: On one of the many acclimatisation climbs prior to the attempt on Everest, Hillary stands on the 20,000 ft ridge of Pumori looking across the Khumbo Glacier to Nuptse, just 2km from Mount Everest.
Read about Sir Edmund Hillary and his team: http://bit.ly/XsPsG2
Image by Royal Geographical Society.
There are few phenomena in the animal kingdom that assault the senses like the royal penguin colonies of Macquarie Island. The largest host up to a million birds at any one time, and the smell, noise and odour of so many in one space create a correspondingly alarming sensory experience.
However, they have a gentler side, illustrated by this pair preening their hatchling.
See more of Brett Phibbs' trip to the subantarctic as Photographer of the Year 2011, courtesy of Heritage Expeditions: http://bit.ly/PBHqbz