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Health & Science4h 28m ago
Astronomers using NASA's Chandra X-ray Observatory found supernova remnants in galaxy Messier 83 (M83) showing unexpected dramatic changes in brightness over 14 years.
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Pasadena, California (for the meeting); Messier 83 (M83) galaxy, located about 15 million light-years from Earth
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 supernova remnants in galaxy Messier 83 (M83) showing unexpected dramatic changes in brightness over 14 years.
When
Mon, 15 Jun 2026 21:20:07 GMT · 4h 28m ago
Where
Pasadena, California (for the meeting); Messier 83 (M83) galaxy, located about 15 million light-years from Earth ·
Why
The unexpected changes in brightness of supernova remnants challenge previous understandings of stellar explosion aftermath.
The Frontline Impact
How this affects you
The discovery of numerous variable supernova remnants in M83 suggests a common interplay between stellar survivors and compact objects (black holes or neutron stars), or cosmic recycling of explosion debris, indicating these phenomena may be characteristic of active star-forming galaxies and warrant further study.
Story chain
9 events in this thread- Health & Science4h 28m 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
- Currently Reading4h 28m 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.
- Health & Science4h 28m agoAstronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.Open article
- Health & Science4h 28m 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 28m 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 28m agoAstronomers detected dramatic, unexpected changes in the X-ray brightness of supernova remnants in the Messier 83 (M83) galaxy.Open article
- Health & Science4h 28m 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 28m 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 28m 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