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Health & Science2h 10m ago
Astronomers 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.
Pasadena, California, Messier 83 (M83) galaxy
Who
astronomers, Andrea Prestwich, Michael McCollough, Roy Kilgard, Zoe Hoiland, NASA's Chandra X-ray Observatory
What
Astronomers 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.
When
Mon, 15 Jun 2026 21:20:07 GMT · 2h 10m ago
Where
Pasadena, California, Messier 83 (M83) galaxy ·
Why
Researchers did not expect to find dramatic changes in brightness from supernova remnants, as they typically fade slowly.
The Frontline Impact
How this affects you
This discovery challenges previous assumptions about the behavior of supernova remnants and suggests the presence of stellar survivor stars orbiting black holes or neutron stars, or cosmic recycling where debris falls back onto the collapsed object, providing new insights into the dynamics of star-forming galaxies.
Story chain
9 events in this thread- Currently Reading2h 10m 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.
- Health & Science2h 10m 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 & Science2h 10m agoAstronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.Open article
- Health & Science2h 10m 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 & Science2h 10m 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 & Science2h 10m agoAstronomers detected dramatic, unexpected changes in the X-ray brightness of supernova remnants in the Messier 83 (M83) galaxy.Open article
- Health & Science2h 10m agoAstronomers found a population of supernova remnants in the nearby galaxy M83 showing dramatic changes in their brightness, contrary to expectations.Open article
- Health & Science2h 10m 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.Open article
- Health & Science2h 10m 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
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