X-ray astronomy is the research area focused on detecting, imaging, and spectroscopically analyzing cosmic sources of X-ray photons, typically in the energy range of ~0.1–100 keV. Because Earth’s atmosphere is opaque to X-rays, this field relies on space-based observatories employing grazing-incidence optics, focusing telescopes, and high-resolution detectors such as CCDs, microcalorimeters, and proportional counters. X-ray astronomy probes high-energy astrophysical processes, including accretion onto compact objects, hot intracluster gas, supernova remnants, stellar coronae, and relativistic jets, enabling quantitative studies of extreme environments, plasma conditions, strong gravity, and energetic feedback in galaxies and large-scale structure.
By conducting multiwavelength observations with various telescopes and space observatories, astronomers from Tsinghua University and Steward Observatory have detected a galaxy pair exhibiting significant X-ray emission. The ...
Astronomers from Wuhan University in China have employed the Insight-HXMT satellite to observe a giant outburst that occurred in the X-ray binary RX J0440.9+4431 about three years ago. Results of the observations, presented ...
An international team of astronomers has employed NASA's Chandra X-ray observatory to perform the most detailed study of a supergiant star known as Wd1-9, which yielded important insights into the properties and nature of ...
NASA's Hubble Space Telescope and NASA's Chandra X-ray Observatory have teamed up to identify a new possible example of a rare class of black holes. Called NGC 6099 HLX-1, this bright X-ray source seems to reside in a compact ...
Astronomy
Jul 24, 2025
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An international team of scientists have provided an unprecedented tally of elemental sulfur spread between the stars using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft.
Astronomy
Jul 23, 2025
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The magnetosphere, formed by Earth's magnetic field, acts as a protective shield that deflects solar wind—the flow of charged particles constantly streaming from the sun toward our planet. This magnetic barrier protects our ...
Earth Sciences
Jul 22, 2025
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An international team of astronomers has uncovered new evidence to explain how pulsing remnants of exploded stars interact with surrounding matter deep in the cosmos, using observations from NASA's IXPE (Imaging X-ray Polarimetry ...
Astronomy
Jul 15, 2025
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Using NuSTAR and XMM-Newton satellites, astronomers from New York University (NYU) Abu Dhabi have observed a pulsar known as PSR J1930+1852 and its pulsar wind nebula (PWN). Results of the observational campaign, published ...
What new methods can be developed in the search for extraterrestrial intelligence (SETI)? This is what a recent white paper submitted to the 2025 NASA Decadal Astrobiology Research and Exploration Strategy (DARES) Request ...
Astronomy
Jul 7, 2025
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Astronomers from the University of Turku in Finland and elsewhere have performed a broadband spectral and timing study of an X-ray binary designated XTE J0111.2−7317, which resulted in the detection of quasi-periodic oscillations ...
