Makers assemble the “Transformer X2” built by Chinese cartoon fans Sui Lulu, Zhang Yiming and Li Wei, was displayed at an exhibition center on October 8, 2007 in Nanjing of Jiangsu Province, China. (Photo by China Photos/Getty Images)

Cosplayers dressed as Star Wars characters Chewbacca (R) and Darth Vader talk at a Star Wars Day fan event in Tokyo May 4, 2015. Star Wars fans celebrate May 4 as Star Wars Day, a pun that comes from an iconic quote in the movie, “May the Force be with you”. (Photo by Toru Hanai/Reuters)

Stefan Dobrovolny of Austria and Inigo Munoz Elorza of Spain (R) stand in front of a quad bike during a simulated Mars mission on Tyrolean glaciers in Kaunertal, Austria, August 7, 2015. The Austrian Space Forum is sending some of its researchers to practice weight-less walking in spacesuits on a glacier which resembles the terrain on Mars. (Photo by Dominic Ebenbichler/Reuters)

Russian President Vladimir Putin (R) looks through a window of a research bathyscaphe while submerging into the waters of the Black Sea as he takes part in an expedition near Sevastopol, Crimea, August 18, 2015. (Photo by Alexei Nikolsky/Reuters/RIA Novosti/Kremlin)

(L-R) Barbara Palvin, Bella Hadid and Izabel Goulart appear on stage at the amfAR's 23rd Cinema Against AIDS Gala at Hotel du Cap-Eden-Roc on May 19, 2016 in Cap d'Antibes, France. (Photo by Andreas Rentz/Getty Images)

(L-R) Singers Kristal Lyndriette, Ashley Williams, Shyann Roberts, Brienna DeVlugt and Gabby Carreiro of June's Diary attend the 2016 BET Awards at the Microsoft Theater on June 26, 2016 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)