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 child prays next to a woman during Eid al-Fitr prayers in Bucharest, Romania, Monday, May 2, 2022. Members of the Romanian Muslim community gathered for Eid al-Fitr prayers, marking the end of the holy fasting month of Ramadan, at the Dinamo stadium in the Romanian capital, in the largest Muslim public gathering of the year in Romania. (Photo by Andreea Alexandru/AP Photo)

A woman in costume stands on the street during pre-Halloween weekend party in Shanghai, China on October 28, 2023. During the last weekend before Halloween, which comes on Tuesday, 31 October 2023, hundreds of youngsters dressed in costumes overwhelmed the streets of Shanghai. Halloween in China become popular due to the influences of Western expats and foreign teachers. (Photo by Alex Plavevski/EPA/EFE)

A pair of black-necked stilts fight over their marshland territory in Orlando, Florida in the last decade of July 2024. (Photo by Jake Landing/Solent News)

A girl dismantles a Kalashnikov rifle during a training lesson focused on the “Defence of Ukraine” at the military-patriotic center for schoolchildren in Lviv on May 17, 2023, amid the Russian invasion of Ukraine. (Photo by Yuriy Dyachyshyn/AFP Photo)

Models pose during the Paul Costelloe Presentation during London Fashion Week September 2021 on September 17, 2021 in London, England. (Photo by Matt Crossick/Empics Entertainment/Getty Images)

A father crosses a road with his twin daughters in Shanghai, China September 28, 2018. (Photo by Aly Song/Reuters)

Military planes fly above a statue of Soviet Union founder Vladimir Lenin during a Naval parade rehearsal in St. Petersburg, Russia, Thursday, July 25, 2019. The celebration of Navy Day in Russia is traditionally marked on the last Sunday of July and will be celebrated on July 28 this year. (Photo by Dmitri Lovetsky/AP Photo)