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)

Rag pickers collect recyclable material at a garbage dump in New Delhi November 19, 2014. (Photo by Ahmad Masood/Reuters)

Surfer Arlen Macpherson sits on his board, which has an electronic shark repellent device installed, at Sydney's Bondi Beach in Australia, August 18, 2015. A spate of shark attacks in Australia has left some of world's top surfing beaches deserted and many people having second thoughts about taking a swim as the summer approaches. Macpherson paid A$390 for a device embedded in his surf board to repel sharks by emitting an electronic force field that overpowers its sensing organs. (Photo by David Gray/Reuters)

A wave carrying plastic waste and other rubbish washes up on a beach in Koh Samui in the Gulf of Thailand on January 19, 2021. (Photo by Mladen Antonov/AFP Photo)

A performer dressed as a lobster is seen during a lobster-themed electronic music party at a water park on August 01, 2020 in Hangzhou, Zhejiang Province of China. (Photo by Lian Guoqing/VCG via Getty Images)

Residents wade across floodwaters after a week typhoon Koppu battered Calumpit town, Bulacan province, north of Manila October 24, 2015. Typhoon Koppu, that dumped heavy rains on the northern Philippines, killing 58 people as it flattened houses and destroyed crops, was petering out on Wednesday, weather officials said. (Photo by Romeo Ranoco/Reuters)

Kylie Jenner on November 13, 2022 shared a photo dump of her recent trip to New York. The reality star showed off her long legs in mini dress. (Photo by kyliejenner/Instagram)

Wild deer rummage through garbage dumped at an open ground in Sri Lanka's district of Trincomalee on April 4, 2023. (Photo by Ishara S. Kodikara/AFP Photo)