Physicists and vision scientists are lining up behind a provocative claim: the rich color we call purple is not a property of light at all, but a story the brain tells itself. Light in the real world ...

A former Harvard professor links modern cosmology with scripture, suggesting heaven may exist beyond the universe’s Cosmic ...

Laboratories that once focused on easing the final moments of life are now probing whether those moments are as final as medicine has long assumed. A wave of experiments on brains, organs, and ...