There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

If you look across space with a telescope, you'll see countless galaxies, most of which host large central black holes, ...

SQUIRE aims to detect exotic spin-dependent interactions using quantum sensors deployed in space, where speed and ...

Space is packed with all sorts of weird and unexpected stuff, but this humongous, spinning string-thing raises a whole new ...

A never-before-seen blast from a supermassive black hole was spotted by two sophisticated X-ray space telescopes. This giant ...

The filament of matter stretches 50 million light-years, and contains a row of galaxies 5.5 million light-years long that are ...

Most of the universe is made up of dark matter and dark energy. The majority of everything else is dispersed throughout space ...

The idea that we might be living in a simulated reality has worried us for centuries. Now physicists have found some ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...