Physicists may have a brand-new way to measure the expansion rate of the universe — one of the biggest outstanding mysteries in cosmology — using space-time ripples predicted by Einstein. A new study ...

What if our biggest idea about reality is built on a hidden misunderstanding? A new philosophical look at space-time challenges the popular view that the past, present, and future all exist together ...

NASA's Roman Space Telescope​ launched shortly after daybreak from Kennedy Space Center and blazed toward an observation ...

Wormholes are often imagined as tunnels through space or time — shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen. In ...

After more than a decade of development, NASA’s Nancy Grace Roman Space Telescope is at last set to launch this weekend. With ...

NASA's Nancy Grace Roman Space Telescope launched from Florida on Sunday to find new planets and to study dark energy and ...

NASA’s new Nancy Grace Roman space telescope will tackle nearly every aspect of astrophysics, including dark matter, dark energy and alien planets.

“One of the motivations for Roman was the discovery that our universe is not just expanding, but that expansion is ...

NASA’s Roman Space Telescope has launched on a million mile journey to L2, where it will scan huge portions of the cosmos for ...

NASA plans to launch the Nancy Grace Roman Space Telescope on August 30 to investigate questions about the composition of the universe and its ultimate end.