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Health & Science4h 30m ago
Astronomers 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.
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Pasadena, California
Who
astronomers, Andrea Prestwich, Michael McCollough, Roy Kilgard, Zoe Hoiland, NASA's Chandra X-ray Observatory
What
Astronomers 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.
When
Mon, 15 Jun 2026 21:20:07 GMT · 4h 30m ago
Where
Pasadena, California ·
Why
Researchers analyzed 14 years of Chandra data of the galaxy, 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 suggests that many supernova remnants may harbor a surviving companion star orbiting a black hole or neutron star, leading to variable X-ray emissions, or that the central compact object is recapturing material from the original explosion.
Story chain
9 events in this thread- Health & Science4h 30m 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 30m 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 30m agoAstronomers found a population of supernova remnants in the M83 galaxy showing dramatic changes in their brightness over 14 years.Open article
- Health & Science4h 30m 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
- Currently Reading4h 30m 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.
- Health & Science4h 30m agoAstronomers detected dramatic, unexpected changes in the X-ray brightness of supernova remnants in the Messier 83 (M83) galaxy.Open article
- Health & Science4h 30m 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 30m 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 30m 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