An isolated black hole has been identified for the first time. Researchers used data from the Hubble telescope and the Gaia ...

A new recipe for gravity could help solve some of the universe's greatest mysteries. It suggests that the concept of "quantum gravity" could arise from entropy, possibly solving puzzles put forth ...

General relativity is an astonishingly beautiful theory, and grappling with why it disagrees with quantum mechanics is a joy, ...

ESA's state-of-the-art timekeeping facility, has been successfully installed on the International Space Station, marking the ...

Testing Einstein’s relativity, measuring fundamental constants, and even searching for dark matter are all on the cards ...

The European Space Agency has launched two atomic clocks on a SpaceX rocket to the ISS to test Einstein's theory of ...

The last decade has brought a new way to explore the universe. Gravitational wave astronomy, made possible by observatories ...

This investigation hinged on a phenomenon called "gravitational lensing," first predicted by Albert Einstein in his 1915 ...

When British physicist Roger Penrose suggested in 1969 that energy could be pulled from a rotating black hole, it sparked a ...

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...