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Health & Science4h 22m ago
Astronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.
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Pasadena, California (American Astronomical Society meeting)
Who
Andrea Prestwich, Michael McCollough, Roy Kilgard, Zoe Hoiland, NASA's Chandra X-ray Observatory
What
Astronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.
When
Mon, 15 Jun 2026 21:20:07 GMT · 4h 22m ago
Where
Pasadena, California (American Astronomical Society meeting) ·
Why
The astronomers expected supernova remnants to fade gradually, not change dramatically in brightness, leading to the unexpected discovery of variable X-ray sources.
The Frontline Impact
How this affects you
This discovery suggests a common and previously underestimated phenomenon where black holes or neutron stars from supernovae interact with companion stars or recapture debris, potentially revealing a new understanding of stellar evolution and galaxy dynamics.
Story chain
9 events in this thread- Health & Science4h 22m 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 22m 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
- Currently Reading4h 22m agoAstronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.
- Health & Science4h 22m 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 22m 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 22m agoAstronomers detected dramatic, unexpected changes in the X-ray brightness of supernova remnants in the Messier 83 (M83) galaxy.Open article
- Health & Science4h 22m agoAstronomers found a population of supernova remnants in the nearby galaxy M83 showing dramatic changes in their brightness, contrary to expectations.Open article
- Health & Science4h 22m 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 & Science4h 22m 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