Macro or Micro? Scientists’ pictures baffle our sense of scale. It began when Stephen Young, a geography professor at Salem State University in Massachusetts, tricked his biologist colleague Paul Kelly into thinking a satellite image was one of his electron microscope scans. Can you guess whether they are close-up or very far away? (Photo by Paul Kelly)

A bogieboarder rides a wave at the wedge in Newport Beach, Calif., Wednesday, August 27, 2014. Southern California beachgoers experienced much higher than normal surf, brought on by Hurricane Marie spinning off the coast of Mexico. (Photo by Chris Carlson/AP Photo)

Students from Cambridge University in England make their way home along Trinity Lane after celebrating the end of the academic year at a May Ball in Trinity College on June 18, 2019. (Photo by Joe Giddens/PA Images via Getty Images)

Woman and man playing domination games in bed. (Photo by NDAB Creativity/Rex Features/Shutterstock)

Horses eat hay and rest on straw at a stud farm in Wehrheim near Frankfurt, Germany, Tuesday, December 5, 2023. (Photo by Michael Probst/AP Photo)

Athletes from Australia's Olympic team going to the 2016 Olympics in Rio present their uniforms alongside Brazilian Samba dancer Sashya Jay at an official unveiling ceremony at Sydney's Bondi Beach, March 30, 2016. (Photo by Jason Reed/Reuters)

An aerial view taken on September 11, 2020 shows the Buddhist temple Wat Samphran (Dragon Temple) in Nakhon Pathom, some 40km west of Bangkok. Wat Samphran is a popular tourist destination with visitors coming to see the huge dragon figure curling around a pink cylindrical building next to the Buddha statues and places of worship of the traditional Buddhist temple complex. (Photo by Mladen Antonov/AFP Photo)

Indians in traditional attire pose for the media as they practice the Garba, a traditional dance of Gujarat state, ahead of Navratri festival in Ahmedabad, India, Monday, October 9, 2023. The Hindu festival of Navratri, or nine nights, will begin on October 15. (Photo by Ajit Solanki/AP Photo)