The source of this extragalactic cosmic ray, detected on May 27, 2021, remains an enigma, as its incoming direction does not align with any known astronomical objects. The cosmic ray’s arrival ...

The Soft X-ray focusing Telescope (SXT) onboard Astrosat, India's first satellite dedicated to astronomical observations, saw its first light from an astronomical source in a distant galaxy, on ...

The IXPE spacecraft will use X-ray polarimetry to better measure black holes, supernovas and other astronomical phenomena. By Jonathan O’Callaghan A brand-new space telescope will soon reveal a ...

The Swift X-ray Telescope (XRT) has seen first light and also has discovered its first gamma-ray-burst afterglow. These events demonstrate that the XRT, one of three instruments aboard the NASA ...

The $25 million Telescope Array cosmic ray observatory was built to detect these high-energy visitors, known as cosmic rays, whose origin remains a mystery. The observatory is a joint venture of ...

The eROSITA X-ray telescope will search for black holes and dark matter, and may help explain why the expansion of the universe is accelerating instead of slowing down.

Astronomical explosions, often from dying stars, release massive energy. Here are seven images captured by NASA's Hubble Telescope.

The Royal Astronomical Society briefly mandated that all journal articles refer to the observatory as 'JWST', before NASA cleared former chief James Webb of persecuting queer staffers.

China launched a cutting-edge orbital telescope on Tuesday afternoon to try to capture traces of fleeting phenomena and give scientists more knowledge about black holes. The Einstein Probe, a ...

And many astronomers are worried about the future of one unique science instrument - the most powerful X-ray telescope ever built. NPR's Nell Greenfieldboyce reports on what's at stake.