A gently lobbed baseball is easy to see. The same ball, however, can seem to vanish from the hand of a skilled pitcher, ...

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

On a daily basis, a radiologist in the U.S. pores over 150–200 X-rays. Their specialty is so important that researchers are ...

Even when people weren’t sure where on the screen they had seen the word before but recognized the word as familiar, their ...

Across Montana, an extraordinary thing occurs daily — people of all ages, backgrounds, and political affiliations visit ...