Why does the brain split visual spatial perception between its hemispheres? A new review by neuroscientists examines the advantages and trade-offs, and how the brain ultimately makes vision feel ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox marks the start of the fall season for the Northern Hemisphere and the spring in ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere ...

The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere and the spring in the Southern Hemisphere. On the equator, the sun will be directly overhead at ...