The Sydney Skyline is seen before the lights are switched off for Earth Hour on March 26, 2011 in Sydney, Australia. Earth Hour encourages individuals around the world to turn off their lights for one hour at 20:30 local time on March 26, 2011 to take a stand against climate change. The largest Earth Hour was in 2010 when 128 countries participated.

In this artist illustration handout from the National Aeronautics and Space Administration (NASA), the Upper Atmosphere Research Satellite (UARS) is seen. According to NASA, the 12,500 pound satellite will fall from orbit into earth's atmosphere anytime between September 22 through 24. It is estimated that the space craft will break up into about 100 pieces, with an estimated 26 of which could hit the earth over a possible 500 mile debris field. (Illustration by NASA via Getty Images)

In this two photo combination picture, the Eiffel Tower with its usual lighting at left, and after the lighting was switched off at right, at the occasion of the Earth Hour, in Paris, France, Saturday March 28, 2015. This Saturday, 28 March 8:30 p.m. local time, individuals, businesses, cities and landmarks around the world are switching off their lights for one hour to focus attention on climate change. (Photo by Remy de la Mauviniere/AP Photo)

Looking at the photos taken by Aaron Groenom, very easy to get lost in this starry wonderland. A series of photos Dark Places - a collection of works in which the artist from South Dakota contrasts the beauty of the universe to various natural or man-made forms on Earth. Using long exposures, it captures the magical landscape filled with fabulous atmosphere, striking color palettes and far-distant galaxies.

These illuminating images show the crumbling remains of some of the worlds places of worship. The shots include golden chapels, overgrown synagogues and eerily silent rooms that were once used for prayer. They were visited by Matthias Haker, a 31-year-old photographer from Potsdam, Germany. Adding to the general intrigue of his images, Matthias never discloses the location of a shot – not even the town, country or continent. Here: The Church of All Saints. (Photo by Matthias Haker/Caters News)

A view through mist shows the Kirk of Saint Mary Magdalene in Primorsk, Leningrad Region, Russia on March 24, 2019. (Photo by Anton Vaganov/Reuters)

A schoolgirl collects rubbish from Karachi's Clifton beach early morning April 22, 2013, during a cleaning campaign as part of the commemoration of Earth Day. (Photo by Akhtar Soomro/Reuters)

Yakutsk, a remote city in Eastern Siberia along the Lena River, is the coldest city in the world. Located 1840 km away from Irkoustk and 5000 km away from Moscow, this city founded in 1632 by the Cossacks imposes upon its inhabitants an extreme way of life. And yet, despite particularly harsh conditions, Yakutsk boasts a population of 270,000, or a quarter of the entire population of Siberia. No other place on the planet experiences the temperature extreme found here: in winter, the temperatures regularly fall to minus 40° (the coldest temperature recorded was –64°C) and in summer often reaches temperatures above 30°C. Photo: January 2013. A scene in Yakutsk, Siberia, the coldest city in the world. (Photo by Steeve Iuncker/Agence VU)