"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 ...

XRISM’s high-precision X-ray data revealed unusually strong signatures of chlorine and potassium inside the Cassiopeia A supernova remnant. These levels are far higher than theoretical models ...

NASA scientists may have found the “ghost” of an exploded star near the Milky Way’s black hole. The ancient supernova remnant could be still expanding after 1,700 years.

Astronomers have discovered the first radio signals from a unique category of dying stars, called Type Ibn supernovae, and these signals offer new insights into how massive stars meet their demise.

Supernova remnant Cassiopeia A, which sits within the Milky Way X-ray: NASA / CXC / SAO; Optical: NASA / ESA / STScI; IR: NASA / ESA / CSA / STScI / Milisavljevic et al., NASA / JPL / CalTech; Image ...

Two stars that once lived together in the Jellyfish Nebula may have also died together.

Some of the most spectacular images ever captured by the Hubble Space Telescope reveal the violent remains of exploding stars. These supernova remnants include glowing clouds of gas, rapidly expanding ...