Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

It’s an optical illusion that has vexed many a weary traveler -- except it’s technically not an illusion at all. This week, we’re exploring the science behind a mirage. * Chances are you’ve noticed ...

optical illusion, were instead probably created by merging galaxies and may have been more common in the dense Universe soon after the Big Bang. “When galaxies interact or merge, they become more ...

I was at Parsons Beach in Kennebunk last weekend on that bitingly cold morning. While that might have been our last hurrah of wintry weather, if we do get another blast of cold, I recommend going to ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...