Amateur honorable mention | Common raven at Banff National Park in Alberta, Canada. (Photo by Colleen Gara/Audubon Photography Awards)

Luis Hernan was always curious about how wireless technologies like radio are transmitted through the air. So after finishing up his studies in architecture, computer science, and design, Hernan decided to research these invisible signals through a PhD at Newcastle University. Hernan set up a system that turned the wireless signals around him into colourful, ghostlike images using long-exposure photography, allowing people to see the strength of the signals around them. (Photo by Luis Hernan)

Snow covered pine tree reaches for the sky. Shot in Sweden on a crisp winter day. (Photo by Anna Rebecka Lindberg/The Guardian)

Sarah Everhardt of the U.S. performs during the gala exhibition in the ISU Four Continents Figure Skating Championships at the Mokdong ice rink in Seoul, South Korea, Sunday, February 23, 2025. (Photo by Lee Jin-man/AP Photo)

Tara West signals to her partner Natalie Cook during the Bronze final match during the Australian Beach Volleyball Championships at Glenelg Beach on March 13, 2011 in Adelaide, Australia.

A visitor and autumn foliage are reflected in the lake at Stourhead gardens in Wiltshire, Britain, November 2, 2018. (Photo by Toby Melville/Reuters)

A dark Devon Rex cat is held by its owner during a competition in Bucharest, Romania, Saturday, September 26, 2015. More than 300 cats entered the international feline beauty competition in the Romanian capital. (Photo by Vadim Ghirda/AP Photo)

This aerial photograph taken on January 27, 2024 shows a camel in the desert of Samawa in Iraq's southern province of al-Muthanna. (Photo by Hussein Faleh/AFP Photo)