Imagine that a massive star, one far bigger than our own sun, has died. First there is a spectacular explosion, followed by whatever remains. Sometimes it is a black hole, which can be fascinating in ...

On February 25, 2024, XRISM used its Resolve instrument to observe the neutron star GX13+1, which is the core of a once larger star that has burned out. GX13+1 is a bright X-ray source. These X-rays ...

The X-Ray Imaging and Spectroscopy Mission (XRISM) has revealed an unexpected difference between the powerful winds launching ...

Is one of the galaxy’s mightiest particle engines secretly hiding in plain sight? Composite new observations of the pulsar ...

WASHINGTON (Reuters) - When a star up to 20 times the mass of our sun exploded in a nearby galaxy, the blast was so violent that it was visible to the naked eye from Earth's southern hemisphere for ...

Neutron stars are the remnants of old stars that have run out of nuclear fuel and undergone a supernova explosion and a subsequent gravitational collapse. Although their collisions—or binary ...

Astronomers have added a new species to the neutron star zoo, showcasing the wide diversity among the compact magnetic remains of dead, once-massive stars. While it’s an oddball, some of this newfound ...

Scientists have observed an extremely energetic star that released a burst of energy so violent that it would reportedly take the sun thousands of years to produce the same amount—all compressed into ...

Astronomers have discovered the slowest spinning radio wave-blasting neutron star ever seen; it takes almost an hour to complete a full rotation. This ultra-leisurely neutron star, however, designated ...

On February 25, 2024, XRISM used its Resolve instrument to observe the neutron star GX13+1, which is the core of a once larger star that has burned out. GX13+1 is a bright X-ray source. These X-rays ...