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)

This aerial image shows autumn leaves at their peak as they surround Tsutenkyo Bridge amongst the grounds of Tofukuji Temple, in the city of Kyoto on November 27, 2024. (Photo by JIJI Press/AFP Photo)

English actress Emma Corrin attends the UK Premiere of “Nosferatu” at Odeon Luxe Leicester Square on December 4, 2024 in London, England. (Photo by Alan Chapman/Dave Benett/WireImage)

A car stands in water on Ferry Road after two magnitude 6.0 and 5.5 earthquakes struck on June 13, 2011 in Christchurch, New Zealand. The aftershocks have followed four months after the major eathquake which hit the city on February 22, 2011 resulting in the deaths of 181 people. (Photo by Martin Hunter/Getty Images)

Daniel Lismore arrives for the Brit Awards at the O2 Arena in London, Britain, February 20, 2019. (Photo by Peter Nicholls/Reuters)

Activists from climate action group Ocean Rebellion demonstrate in St Ives Harbour, ahead of the G7 summit, in St Ives, Cornwall, Britain, June 9, 2021. (Photo by Tom Nicholson/Reuters)

New Zealand singer and songwriter Kimbra Lee Johnson showed off her ageless appearance in a new photo shoot early February 2024. (Photo by Spencer Ostrander)

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.