Pоrn actresses take a break at the Venus erotic fair in Berlin, Germany, October 15, 2015. The event, which represents the erotic business in the German capital, is open till October 18, 2015. (Photo by Fabrizio Bensch/Reuters)

The Northern Lights glow green in a spectacular light show above a field of trees frozen solid with snow. (Photo by Jaak Sarv/Solent News & Photo Agency)

Salt-resistant plants grow in sand made up of small fish bones on the shore of the Salton Sea before sunrise in an area where a controversial development would create a new town for nearly 40,000 people on the northwest shore of the biggest lake in California, the Salton Sea, on March 21, 2012 south of Mecca, California. (Photo by David McNew/Getty Images)

American singer Michael Jackson (1958–2009) arrives at Heathrow Airport with his manager Frank DiLeo, on his Bad World Tour, 11th July 1988. (Photo by Dave Hogan/Getty Images)

An image produced by the Hubble telescope of the perfectly “edge-on” galaxy, or NGC 4013, March 1, 2001. This new Hubble picture reveals, with great detail, huge clouds of dust and gas extending along, as well as far above, the galaxy's main disk. NGC 4013 is a spiral galaxy, similar to the Milky Way, lying some 55 million light-years from Earth in the direction of the constellation Ursa Major. Viewed face-on, it would look like a nearly circular pinwheel, but NGC 4013 happens to be seen edge-on from our vantage point. Even at 55 million light-years, the galaxy is larger than Hubble's field of view, and the image shows only a little more than half of the object, albeit with unprecedented detail. (Photo Courtesy of NASA/Newsmakers)

Astronomer, space scientist and meteorologist Andrea Opitz, senior research associate of the Space Physics and Space Technology Department of Hungarian Academy of Sciences (MTA) Wigner Research Centre for Physics (2R) wears a space suit during a cosmology exhibition in Budapest, Hungary, 03 March 2016. The photo series was created to mark the International Women's Day (IWD), which was marked for the first time in 1911 and is celebrated on 08 March since 1913. (Photo by Bea Kallos/EPA)

Revellers paint faces at Worthy Farm in Somerset for the Glastonbury Festival of Music and Performing Arts on Worthy Farm near the village of Pilton in Somerset, South West England, on June 21, 2017. The largest greenfield festival in the world Glastonbury Festival is now a five-day festival of contemporary performing arts. The Somerset Festival, which Michael Eavis started in 1970 when several hundred hippies paid just £1, now attracts more than 175,000 people. (Photo by Dylan Martinez/Reuters)