For more than a century, physics has treated space and time as the smooth stage on which the universe unfolds, a flexible fabric that bends but never breaks. A new wave of theories is now challenging ...

Time in space affects the body, but research has found that it can also quite literally affect the mind, prompting questions ...

Fragments of energy may be the fundamental building blocks of the universe. The theory combines the ideas of particles and waves into a concentration of energy that flows throughout space and time.

Artemis II crew members stand before the Orion crew module that will take them to the moon. From left are: Jeremy Hansen, mission specialist; Victor Glover, pilot; Reid Wiseman, commander; and ...

"Understanding how spaceflight impacts the human brain is crucial as space exploration and tourism expand," a recently-published study explains NASA/Getty Astronauts' average brain position can change ...