NASA’s Goddard Space Flight Center; X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K...
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supernova remnant tagged posts
NASA-JAXA XRISM finds elemental bounty in supernova remnant
December 11, 2025,
Astronomy/Space
NASA’s Goddard Space Flight Center; X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K...
The Crab Nebula seen in New Light by NASA’s Webb
November 1, 2023,
Astronomy/Space
Exquisite, never-before-seen details help unravel the supernova remnant’s puzzling history. NASA’s James Webb Space Telescope has gazed at the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. Since the recording of this energetic event in 1054 CE by 11th-century astronomers, the Crab Nebula has continued to draw attention and additional study as scientists seek to understand the conditions, behavior, and after-effects of supernovae through thorough study of the Crab, a relatively nearby example.
Using Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument), a team led by Tea Temim at Princeton University is searching for answers about the Crab Nebula’s origins.
“Webb’s sensitivity and spatial resolution allow us to accu...
Read MoreUnveiling a Century-old Mystery: Where the Milky Way’s Cosmic Rays come from
August 26, 2021,
Astronomy/Space
Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant. At least 70% of the very-high-energy gamma rays emitted from cosmic rays are due to relativistic protons, according to the novel imaging analysis of radio, X-ray, and gamma-ray radiation. The acceleration site of protons, the main components of cosmic rays, has been a 100-year mystery in modern astrophysics, this is the first time that the amount of cosmic rays being produced in a supernova remnant has been quantitatively shown and is an epoch-making step in the elucidation of the origin of cosmic rays.
The origin of cosmic rays, the particles with the highest energy in the universe, has been a great mystery since their discovery in 1912...
Read MoreScientists discover elusive gamma-ray pulsar with distributed computing project
August 7, 2015,
Astronomy/Space
Fermi-LAT sky map with the celestial neighborhood of the newly discovered pulsar PSR J1906+0722 featuring several other gamma-ray pulsars (not labeled). The color scale shows the gamma-ray intensity. The dashed square at the centre encloses the position of the pulsar and the part of the sky shown in more detail in the figure below. Credit: Knispel/AEI/NASA/DOE/Fermi LAT Collaboration Read more at: http://phys.org/news/2015-08-scientists-elusive-gamma-ray-pulsar.html#jCp
Gamma-ray pulsars are remnants of explosions that end the lives of massive stars. They are highly-magnetized and rapidly rotating compact neutron stars. Like a cosmic lighthouse they emit gamma-ray photons in a characteristic pattern that repeats with every rotation...
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