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Health & Science4h 22m ago
Astronomers 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.
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Pasadena, California, galaxy Messier 83 (M83)
Who
astronomers, Andrea Prestwich, Michael McCollough, Roy Kilgard, Zoe Hoiland, NASA's Chandra X-ray Observatory
What
Astronomers 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.
When
Mon, 15 Jun 2026 21:20:07 GMT · 4h 22m ago
Where
Pasadena, California, galaxy Messier 83 (M83) ·
Why
The unexpected variability in supernova remnants suggests the presence of stellar survivor stars orbiting black holes or neutron stars, forming high-mass X-ray binaries, or that the compact objects are recapturing material from the original explosion.
The Frontline Impact
How this affects you
This discovery challenges previous assumptions about the stability of supernova remnants and could lead to a better understanding of how massive stars evolve and interact with their stellar companions after a supernova explosion. The findings suggest that these variable systems might be common in galaxies actively forming stars.
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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
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- Currently Reading4h 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.
- 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