People pause at a memorial set up for victims of a mass shooting in Las Vegas, Nev., on Tuesday, October 3, 2017. A gunman opened fire on an outdoor music concert on Sunday. It was the deadliest mass shooting in modern U.S. history, with dozens of people killed and hundreds injured, some by gunfire, some during the chaotic escape. (Photo by John Locher/AP Photo)

NASA says it could be another 20 years before humans touch down on Mars, but in a sense, the Mars Society has been exploring the red planet for more than a decade – in Utah. Photo: Csilla Orgel, a geologist of Crew 125 EuroMoonMars B mission, makes her way back to the Mars Desert Research Station (MDRS) in the Utah desert March 3, 2013. The MDRS aims to investigate the feasibility of a human exploration of Mars and uses the Utah desert's Mars-like terrain to simulate working conditions on the red planet. Scientists, students and enthusiasts work together developing field tactics and studying the terrain. All outdoor exploration is done wearing simulated spacesuits and carrying air supply packs and crews live together in a small communication base with limited amounts of electricity, food, oxygen and water. Everything needed to survive must be produced, fixed and replaced on site. (Photo by Jim Urquhart/Reuters)

Joanne the Scammer (L) and model Amber Rose attend the Amber Rose SlutWalk 2016 at Pershing Square on October 1, 2016 in Los Angeles, California. (Photo by Amanda Edwards/FilmMagic)

Aymara indigenous people celebrate the “Roscasiri”, the change of command of local authorities, in Pomata District, one of seven districts of the Chucuito Province in the Puno Region, southern Peru, on January 1, 2022. This ancient Aymara event, in which people adorn themselves with breads and fruits that represent abundance for the new year, celebrates the change of command of local authorities. (Photo by Carlos Mamani/AFP Photo)

Chinese Taipei's Hsiao-Wen Huang reacts after winning her fight against Serbia's Nina Radovanovic during their women's fly (48-51kg) quarter-final boxing match during the Tokyo 2020 Olympic Games at the Kokugikan Arena in Tokyo on August 1, 2021. (Photo by Ueslei Marcelino/Reuters)

Italian Air Force's aerobatic demonstration team, the Frecce Tricolori leave colourful vapour trails as they fly over the Altare della Patria monument on Republic Day (Festa della Repubblica) in Rome, Italy, 02 Jun 2017. The anniversary marks the founding of the Italian Republic in 1946. (Photo by Massimo Percossi/EPA)

Mechanics work in the Buggy belonging to Argentina's Manuel Sisterna and Adrian Echegaray during technical verification ahead of the Dakar Rally 2015 in Buenos Aires January 1, 2015. (Photo by Enrique Marcarian/Reuters)

Spectators cheer as the United Launch Alliance Delta 4-Heavy rocket, with NASA's Orion spacecraft mounted atop, lifts off from the Air Force Station, December 5, 2014, in Cape Canaveral, Fla. (Photo by Smiley N. Pool/AP Photo/Houston Chronicle)