Sharafkhaneh port and lake Urmia. Masoud Ghadiri (Iran). The summer Milky Way is very prominent in this photo. On the galaxy zone, Saturn is located besides the Lagoon nebula. On the right of the horizon, you can see the extreme light pollution of Urmia, which is caused by ever-increasing city development. (Photo by Masoud Ghadiri/National Maritime Museum)

Residents of Reddit have found a strange phenomenon. If you make a circle on the floor with anything from tinfoil to scotch tape, the house cat would simply love to sit right in the middle of it. Is it a fake, or do cats actually like sitting in circles on the floor? We cannot answer this question until we test it out ourselves. However, one thing is for sure – cats are curious and adorable creatures that never cease to amaze us. So, if you own a cat, try this experiment yourself, and see if your cat likes to sit in an imaginary circle on the floor.

Mungo Thomson is a contemporary visual concept artist from Los Angeles. His work can be described as simple but fascinating. His interest in what he calls ‘the dumb idea’, something simple but interesting, makes his art so special.

Lisa Moran, an artist in Ireland, sketches images or paints them on her hands so that she can create half-masks against her own face. She made Skin Deep for Halloween. The impressive Reconstructive Surgery was just a casual image she colored between exams.

Some of the best entries so far in the 2016 Insight Astronomy Photographer of the Year competition. There are two weeks left to enter, and the winners will be announced in September. Here: Aurora over Laksvatn Fjord, Laksvatn, Norway. The aurora borealis dances in the skies over the town of Laksvatn, with the Milky Way to the left. The image is a single shot with no compositing, only post-processing to bring out the aurora, and some colour corrections. The photographer Matt Walford said: “I love the way the northern lights look like they are just wistfully dancing over the fjord, framed by the mountains on either side”. (Photo by Matt Walford/National Maritime Museum)

In this February 19, 2017 photo, a couple dances during the “If you don't give me....then you lend me” Carnival street party on Ipanema beach, in Rio de Janeiro, Brazil. The typical view of Carnival in Brazil is anything goes, with no headdress too big, no outfit too small, no song too ribald, but this year some organizers of the world's best known party are drawing the line at lyrics that are sexist, homophobic or racist. (Photo by Silvia Izquierdo/AP Photo)

Have you ever tried painting with light? Yes, you’ve heard us right. It is not a figure of speech, and it is actually possible to draw with light if you have a good camera and a tripod. All you have to do is to set your camera on a tripod in a dark place (preferably at night in some park), set exposure time to the max, turn on a single bright light (the screen of your mobile phone will do), and you can start painting. Darren Pearson is a photographer who specializes in making such drawings. The level of intricacy with which he creates his paintings is astounding, considering the fact that making such a drawing is like painting with a blindfold on.

A Humboldt penguin stands on weighing scales whilst being photographed by members of the press during a photocall at the annual weigh-in at London Zoo in London, Britain, 24 August 2016. Every animal that is in the zoo is weighed and measured and the statistics recorded so the data can be shared with zoos across the world. (Photo by Hannah McKay/EPA)