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Space Simulation
In this photo provided by the University of Hawaii, six scientists celebrate as they exit from their Mars simulation habitat on slopes of Mauna Loa on the Big Island, Hawaii, Sunday, Aug. 28, 2016. The scientists completed a yearlong Mars simulation in Hawaii on Sunday, where they lived in the dome in near isolation. (University of Hawaii via AP)
National Parks Misbehaving Tourists
In this Aug. 3, 2016 photo, Yellowstone National Park tourist John Gleason moves in on a large bull elk as two of his children and two children of friends follow the Walla Walla, Washington man. The animal ran away as the group got closer. Park officials say visitors getting too close to wildlife can create dangerous situations and has been on the rise as visitor numbers hit record levels. (AP Photo/Matthew Brown)
Italy Quake
Firefighters work in Amatrice, central Italy, Sunday, Aug. 28, 2016. Bulldozers with huge claws pulled down dangerously overhanging ledges Sunday in Italy's quake-devastated town of Amatrice as investigators worked to figure out if negligence or fraud in building codes had added to the quake's high death toll. (Roberto Salomone/ANSA via AP)
Britain Carnival
Dancers perform during the Children's Day parade at the Notting Hill Carnival in west London, Sunday, Aug. 28, 2016. (Isabel Infantes/PA via AP)