A new optical illusion featuring a polar bear in a snowy landscape has been making the rounds online, with only 1% of people ...

A new brain teaser is asking people to find the polar bear hidden somewhere in this snowy landscape - and it's leaving people ...

But even in the midst of the polar night, it isn't pitch black. At times the rays of the Sun filter weakly through the upper layers of the atmosphere, creating twilight shades of blue, pink and ...