A pro-Russian rebel guards a captured former Ukrainian Army checkpoint outside Vuhlehirsk, Donetsk region, eastern Ukraine, Thursday, February 5, 2015. The rebels have closed in around the town in a strategy they triumphantly refer to as the Debaltseve cauldron. Separatists recently burst through government lines in the rural settlement of Vuhlehirsk. (Photo by Vadim Braydov/AP Photo)

Axel, a research prototype rover for exploring the Moon, Mars and other planets, is remotely driven over rocks as engineers from Jet Propulsion (JPL) and grad students from Caltech (California Institute of Technology) demonstrate its mobile over the steep and rocky grounds of the JPL Mars Yard on January 14, 2009 in Pasadena, California. The rover is capable of descending cliffs or into craters and returning by a cable tethered to its starting point. Development of the Axel rover is a point effort funded by NASA Exploration Systems Mission Directorate (ESMD) and lead by Principal Investigator Issa Newnas and Co-Investigator and Caltech professor of mechanical engineering bio engineering Joel Burdick. (Photo by David McNew/Getty Images)

Pakistani volunteers carry an injured passenger following a bomb blast in Peshawar, Pakistan, Wednesday, March 16, 2016. A bomb ripped through a bus carrying Pakistani government employees in the northwestern city of Peshawar on Wednesday, killing a number of people, police said. (Photo by Mohammad Sajjad/AP Photo)

Joseph Szabo was a frustrated high-school teacher in need of inspiration – so he started photographing his students, and captured all the angst and excitement of being caught between childhood and adulthood. Here: “Priscilla”, 1969. (Photo by Joseph Szabo/Courtesy of Michael Hoppen Gallery/The Guardian)

“I was doing some event shooting for Bar One's Beer And Wine garden. I was working with these two ladies when all of a sudden I hear an "excuse me” and I see dude step into the frame right when I pressed the shutter button!” (Photo by 17thletter Photography)

Women wearing kimonos gather after attending a Coming of Age ceremony on January 8, 2018 in Yokohama, Japan. Coming of Age Day is a Japanese holiday held every January to celebrate people who have reached 20 – the official age of adulthood in Japan. Yokohama city, with almost 37,000 people turning 20 this year, is holding one of the largest events in the country. (Photo by Carl Court/Getty Images)

Cotswold gamekeeper shoots amazing pictures of British wildlife – without the aid of long lenses and elaborate techniques. The photos may look like they have been shot from miles away – but amazingly Adam Tatlow is actually just feet away from his wild subjects. Photo: Young fawn shelters in the wood. He is so at one with nature that he knows how to call animals to him, and often gets within 30ft of them. (Photo by Adam Tatlow/BNPS)

Tony North; First place, Breathing Spaces; Overall Winner; Blue Tajinaste, La Palma, Canary Islands, Spain. “Echium thyrsiflorum is endemic to the mountains of La Palma island – from high up, there was a magnificent view of both the caldera below, and the stars above. The Unesco La Palma biosphere reserve encompasses the entire island, with the Caldera de Taburiente containing mountains with a highest peak of 2,426 metres – the Roque de los Muchachos”. (Photo by Tony North/IGPOTY)