An artist's impression of a growing supermassive black hole located in the early Universe is seen in this NASA handout illustration released on June 15, 2011. Using the deepest X-ray image ever taken, astronomers found the first direct evidence that massive black holes were common in the early universe. This discovery from NASA's Chandra X-Ray Observatory shows that very young black holes grew more aggressively than previously thought, in tandem with the growth of their host galaxies. (Photo by Reuters/NASA/Chandra X-Ray Observatory/A.Hobart)

Same-sеx marriage supporters kiss outside the Legislative Yuan Friday, May 17, 2019, in Taipei, Taiwan after the legislature passed a law allowing same-sеx marriage in a first for Asia. The vote Friday allows same-sеx couples full legal marriage rights, including in areas such as taxes, insurance and child custody. (Photo by Chiang Ying-ying/AP Photo)

Actors Jason Statham and Rosie Huntington-Whiteley arrive at the Metropolitan Museum of Art Costume Institute Gala (Met Gala) to celebrate the opening of “Manus x Machina: Fashion in an Age of Technology” in the Manhattan borough of New York, May 2, 2016. (Photo by Lucas Jackson/Reuters)

Emily Ratajkowski arrives at The Metropolitan Museum of Art Costume Institute Benefit Gala, celebrating the opening of “Manus x Machina: Fashion in an Age of Technology” on Monday, May 2, 2016, in New York. (Photo by Charles Sykes/Invision/AP Photo)

American fashion model Simone Thompson, better known as Slick Woods walks at the Savage x Fenty – September 2018 – New York Fashion Week at Brooklyn Navy Yard on September 12, 2018 in Brooklyn, New York. (Photo by Presley Ann/Patrick McMullan via Getty Images)

Jessie Jo Stark and Bella Hadid attend Chrome Hearts X Bella Hadid Collaboration Launch as part of Paris Fashion Week at Chrome Hearts on March 4, 2017 in Paris, France. (Photo by Julien M. Hekimian/Getty Images for Chrome Hearts)

Yueyaquan is a crescent-shaped lake in an oasis, 6 km south of the city of Dunhuang in Gansu Province, China. It was named Yueyaquan in the Qing Dynasty. According to measurements made in 1960, the average depth of the lake was 4 to 5 meters, with a maximum depth of 7.5 metres In the following 40 years, the depth of the lake continually declined. In the early 1990s, its area had shrunk to only 5,500 m2 with an average depth of 0.9 meter (maximum 1.3 meter). In 2006, the local government with help of the central government started to fill the lake and restore its depth; its depth and size have been growing yearly since then. The lake and the surrounding deserts are very popular with tourists, who are offered camel and 4x4 rides.

Organizers of an exhibition of ancient instruments of torture in Huai'an, Jiangsu province, have suggested that children, heart disease patients and people with high blood pressure stay away because of the vivid depictions of shocking cruelty. The exhibition has more than 200 instruments of torture on display in the 50,000-square-meter exhibition halls of a restored ancient building. Wax figures, along with sound and light techniques, are incorporated for scary effect. The local government said the exhibition is for tourists and historians to research ancient torture practices. (Photo by ChinaFotoPress)