When massive stars reach the end of their lives and explode in a supernova, they can leave behind huge structures in space called supernova remnants. These are often favorite targets of astronomers ...

"Why are we here?" is humanity's most fundamental and persistent question. Tracing the origins of the elements is a direct attempt to answer this at its deepest level. We know many elements are ...

For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) ...

In this composite photo of supernova remnant Cassiopeia A, created by meshing x-ray images from the Chandra Observatory, visible images from the Hubble Telescope and infrared images from the James ...

The James Webb Space Telescope has observed the best evidence yet for emission from a neutron star at the site of a well-known and recently-observed supernova known as SN 1987A. At left is a NIRCam ...

About eleven millennia ago, a star met its explosive end in the constellation of Vela, giving rise to a brief but luminous spectacle that graced the skies of early human civilizations. The remnants of ...

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly ...

Hidden within Cassiopeia A, the youngest known exploded star in our galaxy, astronomers have found surprisingly high levels of chlorine and potassium. These elements carry an odd number of protons in ...

Supernova remnants (SNRs) represent the dynamic aftermath of stellar explosions, characterised by expanding shock fronts that interact with the surrounding interstellar and circumstellar media. The ...

Astronomers using the James Webb Space Telescope (JWST) have found conclusive evidence of a neutron star in the remnant of Supernova 1987A, the only supernova visible to the naked eye in the last 400 ...