Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

Debris from rockets and satellites can fall back to Earth or collide with other objects, and wreckage that burns up can harm ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

NASA's James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and ...

A hidden box-lattice suggests groundwater sculpted Mars long after surface water fled; Curiosity’s drills aim to confirm the ...