X-ray: NASA/CXC/INAF-Brera/L. Ighina et al.; Illustration: NASA/CXC/SAO/M. Weiss; Image Processing: NASA/CXC/SAO/N. Wolk
A black hole is growing at one of the fastest rates ever recorded, according to a team of astronomers...
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Chandra tagged posts
Chandra finds black hole that’s growing at 2.4 times the Eddington limit
September 24, 2025,
Astronomy/Space
X-ray: NASA/CXC/INAF-Brera/L. Ighina et al.; Illustration: NASA/CXC/SAO/M. Weiss; Image Processing: NASA/CXC/SAO/N. Wolk
Credit: X-ray:Â NASA/CXC/Northwestern Univ./F. Yusef-Zadeh et al;Â Radio:Â NRF/SARAO/MeerKat;Â Image Processing:Â NASA/CXC/SAO/N. Wolk
Astronomers have discovered a likely explanation for a fracture in a huge cosmic “bone” in the Milky Way galaxy, using NASA’s Chandra X-ray Observatory and radio telescopes.
The bone appears to have been struck by a fast-moving, rapidly spinning neutron star, or a pulsar. Neutron stars are the densest known stars and form from the collapse and explosion of massive stars. They often receive a powerful kick from these explosions, sending them away from the explosion’s location at high speeds.
Enormous structures resembling bones or snakes are found near the center of the galaxy...
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When the titans of space—galaxy clusters—collide, extraordinary things can happen. A new study using NASA’s Chandra X-ray Observatory examines the repercussions after two galaxy clusters clashed.
Galaxy clusters are the largest structures in the Universe held together by gravity, containing hundreds or even thousands of individual galaxies immersed in giant oceans of superheated gas. In galaxy clusters, the normal matter—like the atoms that make up the stars, planets, and everything on Earth—is primarily in the form of hot gas and stars. The mass of the hot gas between the galaxies is far greater than the mass of the stars in all of the galaxies...
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HaloSat, a new CubeSat mission to study the halo of hot gas surrounding the MilkyWay, was released from the International Space Station over Australia on July 13. Credit: NanoRacks/NASA
A new mission called HaloSat will help scientists search for the universe’s missing matter by studying X-rays from hot gas surrounding the Milky Way galaxy. Astronomers keep coming up short when they survey “normal” matter, the material that makes up galaxies, stars and planets. A new NASA-sponsored CubeSat mission called HaloSat, deployed from the International Space Station on July 13, will help scientists search for the universe’s missing matter by studying X-rays from hot gas surrounding our Milky Way galaxy.
The cosmic microwave background (CMB) is the oldest light in the universe, radiation from when ...
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