Brittany Ching dressed as a character from the sci-film “Avatar” at the annual Denver Comic Con at the Colorado Convention Center on June 16, 2016. (Photo by AndyCross/The Denver Post)

The competition is run by Royal Observatory Greenwich sponsored by Insight Investment and in association with BBC Sky at Night Magazine. This year astrophotographers from 91 countries sent in more than 4,200 spectacular entries. Here: The Milky Way rises above an isolated lighthouse in Tasmania. Shot by James Stone of Australia. (Photo by James Stone/Astronomy Photographer of the Year 2018)

Blizzard in the High Peak, Derbyshire, by John Finney: “After a difficult journey in the snow, I made my way from Mam Tor down onto the Great Ridge. As the clouds got darker, I placed the tripod and camera at just the right angle to avoid snow getting onto the lens, and used a flash gun and a relatively slow shutter speed to highlight the fast motion of the blizzard”. Classic view, adult class – winner. (Photo by John Finney/Landscape Photographer of the Year)

The Historic Photographer of the Year awards celebrate historic places and cultural sites across the globe, from national treasures to hidden gems. Entries were judged on originality, composition and technical proficiency as well as the story that inspired the submission and its historical impact. Here: Overall winner. Mont Saint-Michel by Daniel Burton. (Photo by Daniel Burton/The Guardian)

Tyra Banks prepares to pose as she arrives at the iHeartRadio MuchMusic Video Awards (MMVA) in Toronto, Canada, August 26, 2018. (Photo by Mark Blinch/Reuters)

Norway's Karsten Warholm celebrates winning the men's 400m hurdles at the Diamond League in London, July 21, 2018. (Photo by Andrew Boyers/Action Images via Reuters)

An image captured by Jasmine Vink, the winner of the wildlife and animal category and overall winner in Australian Photography’s 2018 Photographer of the Year competition. (Photo by Jasmine Vink/Australia's 2018 Photographer of the Year by Panasonic)

This photo of an elephant seal and Gentoo penguin shot by Andrew James in Yankee Harbour, Antarctica. (Photo by Andrew James/Travel Photographer of the Year)