A sequence on the Bayeux Tapestry shows King Harold alongside a crowd gazing at the sky, beneath the embroidered caption Isti mirant stella ("those people marvel at the star"). Above Harold sits Halley's Comet, with ghostlike ...
Astronomy
Oct 20, 2026
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Researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory have completed two of the largest cosmological simulations ever performed. Each simulation modeled the evolution of 13.4 trillion dark matter ...
Astronomy
Oct 20, 2026
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Pulsars are rapidly rotating neutron stars, the extremely dense cores left behind when massive stars explode. Astrophysicists have recently observed a pulsar rotating over 300 times per second that appeared to be slowing ...
Some supermassive black holes rapidly consume surrounding matter while simultaneously firing powerful streams of plasma into space at nearly the speed of light. However, this creates a physical puzzle: rapid feeding is expected ...
Astronomy
Oct 20, 2026
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29
The interstellar comet 3I/ATLAS brought material from another planetary system within reach of our telescopes, but reading its chemistry poses a problem. Energetic particles encountered during its journey through space may ...
The gas orbiting Sagittarius A (Sgr A*), the supermassive black hole at the center of the Milky Way galaxy, is rich in metals, researchers at McGill University's Trottier Space Institute have found. The metal enrichment probably ...
Astronomy
Oct 19, 2026
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95
Astronomers using China's FAST radio telescope have discovered a compact cloud of hydrogen with no visible stars or galaxy around it. This could be one of the strongest candidates yet for an isolated "dark galaxy," containing ...
A University of Missouri astronomer is leading a team of 130 researchers from 62 institutions—including NASA, the California Institute of Technology, Princeton University and Harvard University—on an ambitious mission to ...
Astronomy
Oct 16, 2026
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225
How do young stars reshape the clouds from which they are born? A new high-resolution 3D model developed by an international team led by Dr Brandt Gaches from the University of Duisburg-Essen shows how the uneven structure ...
Astronomy
Oct 16, 2026
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23
Seven billion light-years from Earth, there is an unexpected cluster of galaxies. It has two regions in the process of colliding with each other with a combined mass of more than two quadrillion solar masses. Given its mass, ...
Astronomy
Oct 16, 2026
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