Space Science
NASA X-Ray Mission Gets Fresh Look at 2,000-Year-Old Supernova
Mar 24, 2026, 7:57 PM
出典: NASA News
NASA’s IXPE (Imaging X-ray Polarimetry Explorer) mission has taken a new observation of a supernova, RCW 86, helping fill in a fuller picture of what other telescopes have observed. When astronomers using NASA’s Chandra X-ray Observatory previously targeted RCW 86, they discovered that a large “cavity” region around the system led the supernova to expand […]
Details
NASA’s IXPE observed the outer rim of the supernova remnant highlighted in purple in the inset. Data from IXPE is combined with data from NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton. The yellow represents low-energy X-rays, while blue shows high-energy X-rays detected by Chandra and XMM-Newton. The starfield in the image comes from the National Science Foundation’s National Optical-Infrared Astronomy Research Laboratory (NOILab).
NASA/ X-ray: Chandra: NASA/CXC/SAO, XMM: ESA/XMM-NEWTON, IXPE: NASA/MSFC; Optical: NSF/NOIRLab; Image Processing: NASA/CXC/SAO/J.
NASA’s IXPE (Imaging X-ray Polarimetry Explorer) mission has taken a new observation of a supernova, RCW 86, helping fill in a fuller picture of what other telescopes have observed.
When astronomers using NASA’s Chandra X-ray Observatory previously targeted RCW 86, they discovered that a large “cavity” region around the system led the supernova to expand more rapidly than expected. The low-density cavity region could have led to RCW 86’s unique shape as well. Now, IXPE has observed the outer rim of this supernova, where its expansion is suspected to have halted at the edge of the “cavity,” creating the reflected shock effect highlighted in purple.
The full image combines IXPE’s data with legacy observations from two other X-ray telescopes: NASA’s Chandra and the ESA (European Space Agency) XMM-Newton telescope. The yellow represents low-energy X-rays, while blue shows high-energy X-rays detected by Chandra and XMM-Newton. The starfield in the image comes from the National Science Foundation’s National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
More about IXPE
The IXPE mission, which continues to provide unprecedented data enabling groundbreaking discoveries about celestial objects across the universe, is a joint NASA and Italian Space Agency mission with partners and science collaborators in 12 countries. It is led by NASA’s Marshall Space Flight Center in Huntsville, Alabama. BAE Systems, Inc., headquartered in Falls Church, Virginia, manages spacecraft operations together with the University of Colorado’s Laboratory for Atmospheric and Space Physics in Boulder. Learn more about IXPE’s ongoing mission here:
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Supernova
A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle. This event can outshine entire galaxies for a short period and is a key process in the universe, contributing to the distribution of elements and the formation of new stars.
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X-ray Astronomy
X-ray astronomy is a branch of astronomy that studies celestial objects emitting X-rays. These high-energy emissions can provide insights into extreme environments, such as those found around black holes and neutron stars.