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Health & Science4h 29m ago
Astronomers using NASA's Chandra X-ray Observatory found a population of supernova remnants in the nearby galaxy Messier 83 (M83) showing dramatic changes in their brightness over 14 years.
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Pasadena, California
Who
astronomers, Andrea Prestwich, Michael McCollough, Roy Kilgard, Zoe Hoiland
What
Astronomers using NASA's Chandra X-ray Observatory found a population of supernova remnants in the nearby galaxy Messier 83 (M83) showing dramatic changes in their brightness over 14 years.
When
Mon, 15 Jun 2026 21:20:07 GMT · 4h 29m ago
Where
Pasadena, California ·
Why
The research analyzed 14 years of Chandra data of the galaxy M83, spanning 2000 to 2014, and discovered unexpected variations in the X-ray brightness of sources previously identified as supernova remnants.
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How this affects you
This discovery presents two main potential explanations: either stellar survivor stars are orbiting with black holes or neutron stars formed from a supernova, or black holes/neutron stars are recapturing material from their own explosions. These findings challenge previous understandings of supernova remnants and suggest such systems may be common in galaxies with active star formation, potentially indicating new insights into stellar evolution and galactic dynamics.
Story chain
9 events in this thread- Health & Science4h 29m agoAstronomers found that roughly half of the 22 X-ray sources associated with supernova remnants in M83 showed unexpected changes in X-ray brightness over 14 years of observations.Open article
- Health & Science4h 29m agoAstronomers using NASA's Chandra X-ray Observatory found supernova remnants in galaxy Messier 83 (M83) showing unexpected dramatic changes in brightness over 14 years.Open article
- Health & Science4h 29m agoAstronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.Open article
- Health & Science4h 29m agoAstronomers using NASA's Chandra X-ray Observatory found that half of the 22 supernova remnants observed in galaxy M83 showed unexpected changes in their X-ray brightness over 14 years.Open article
- Health & Science4h 29m agoAstronomers found a population of supernova remnants in the nearby galaxy Messier 83 (M83) showing dramatic changes in their brightness, a discovery presented at the American Astronomical Society meeting and published in The Astrophysical Journal.Open article
- Health & Science4h 29m agoAstronomers detected dramatic, unexpected changes in the X-ray brightness of supernova remnants in the Messier 83 (M83) galaxy.Open article
- Health & Science4h 29m agoAstronomers found a population of supernova remnants in the nearby galaxy M83 showing dramatic changes in their brightness, contrary to expectations.Open article
- Currently Reading4h 29m agoAstronomers using NASA's Chandra X-ray Observatory found a population of supernova remnants in the nearby galaxy Messier 83 (M83) showing dramatic changes in their brightness over 14 years.
- Health & Science4h 29m agoAstronomers using NASA's Chandra X-ray Observatory found that roughly half of 22 supernova remnants in M83 showed unexpected changes in X-ray brightness over 14 years.Open article