When two massive objects – like black holes or neutron stars – merge, they warp space and time. Mark Garlick/Science Photo Library via Getty Images After a three-year hiatus, scientists in the U.S.

For the past decade, gravitational wave astronomy has opened our eyes to amazing cosmic phenomena thanks to LIGO, the Laser Interferometer Gravitational-wave Observatory. Bob McDonald celebrates LIGO ...

After a three-year hiatus, scientists in the U.S. have just turned on detectors capable of measuring gravitational waves—tiny ripples in space itself that travel through the universe. Unlike light ...

The best place to observe the stars is among them, which is why Hubble and the James Webb Space Telescope have been deployed outside Earth's murky atmosphere. At least, that's the case when you're ...

SXS—Simulating eXtreme Spacetimes—is an ongoing scientific collaboration that has been generating simulations of dramatic ...

This artwork imagines the ultimate front-row seat for GW250114, a powerful collision between two black holes observed in gravitational waves by the US National Science Foundation LIGO. It depicts the ...

Gravitational waves, tiny ripples in spacetime caused by cosmic collisions like merging black holes, are almost impossibly faint. Detecting them requires LIGO (Laser Interferometer Gravitational-Wave ...

Could LIGO find alien spacecraft accelerating to near light speed? The gravitational wave detector LIGO has made hugely important discoveries. But what else might be hiding in the ripples’ of ...

Scientists believe if the Trump administration's proposed budget is approved, a Louisiana space observatory could be on the chopping block and see its scientific mission crippled. The Trump ...

A strange chirp detected by LIGO in 2019 has some scientists searching for answers beyond a simple black hole merger.