Electromagnetic radiation astronomy is a research area focused on observing and interpreting astrophysical phenomena through their emission, absorption, and scattering of electromagnetic radiation across the entire spectrum, from radio waves to gamma rays. It encompasses the development and use of ground-based and space-borne telescopes, detectors, and instrumentation optimized for specific wavelength ranges, along with calibration, data reduction, and spectral, temporal, and imaging analysis techniques. The field integrates radiative transfer, plasma physics, and atomic and molecular processes to infer physical conditions, kinematics, composition, and magnetic fields in cosmic sources, and underpins multiwavelength and multi-messenger studies of the universe.
Scientists have long been aware of the massive elliptical galaxy, M87. The galaxy was first observed in the late 18th century by Charles Messier, who cataloged objects in the sky specifically to avoid them when looking for ...
Astronomers hunting for evidence of the light from the first stars and galaxies have found that the universe was warm, rather than cold, before it "lit up."
Astronomy
Sep 30, 2025
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An international research collaboration has used advanced computer simulations to investigate how faint radio signals from the early universe, soon to be observed from missions on the far side of the moon, could shed light ...
Astronomy
Sep 17, 2025
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Construction is underway of CHORD, the most ambitious radio telescope project ever built on Canadian soil. Short for the Canadian Hydrogen Observatory and Radio-transient Detector, CHORD will give astronomers an unprecedented ...
Astronomy
Aug 28, 2025
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Using NASA's Chandra and ESA's XMM-Newton space observatories, Indian astronomers have explored the population of ultraluminous X-ray sources in the galaxy NGC 5813, which resulted in the detection of a new source of this ...
Fast radio bursts (FRBs) last around a millisecond, and in doing so, encode otherwise unattainable information on the plasma which permeates our universe, providing insights into magnetic fields and gas distributions.
Astronomy
Aug 11, 2025
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The ability to detect single photons (the smallest energy packets constituting electromagnetic radiation) in the infrared range has become a pressing need across numerous fields, from medical imaging and astrophysics to emerging ...
Optics & Photonics
Aug 7, 2025
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With the recent first light milestone for the Vera Rubin Observatory, it's only a matter of time before one of astronomy's most long-awaited surveys begins. The Legacy Survey of Space and Time (LSST) is set to start on November ...
Astronomy
Jul 9, 2025
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Astronomers from Bulgaria and Egypt have performed multi-wavelength observations of a well-known blazar designated S5 0716+714. Results of the observational campaign, published June 23 in the Monthly Notices of the Royal ...
We are entering a new era of cosmic exploration. The new Vera C Rubin Observatory in Chile will transform astronomy with its extraordinary ability to map the universe in breathtaking detail. It is set to reveal secrets previously ...
Astronomy
Jun 30, 2025
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