The ocean is teeming with life. But unless you get up close, much of the marine world can easily remain unseen. That's because water itself can act as an effective cloak: Light that shines through the ...

During a surprise aurora storm, a bright white streak lit the US sky, puzzling many. It was traced back to a Chinese rocket ...

High-gloss paint can create the illusion of a bigger room thanks to the reflective surface. The design trick works best with ...

Artists and scientists have been creating optical illusions for centuries. Here are 35 mind-bending examples that prove you ...