‘Little red dots’ could herald the birth of supermassive black holes
Did cocoons of dense gas shine brightly in the early universe?
Read article: ‘Little red dots’ could herald the birth of supermassive black holes
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Keith Cooper is a freelance science journalist and the author of several books. He has a BSc in physics with astrophysics from the University of Manchester, UK. Keith has written regularly for Physics World since 2015, and has also written for Astronomy magazine, New Scientist, Sky at Night and Sky & Telescope, plus Space.com and Supercluster.com online. He was formerly the editor of Astronomy Now magazine. His books include The Contact Paradox: Challenging Our Assumptions in the Search for Extraterrestrial Intelligence (Bloomsbury Sigma 2019) and Amazing Worlds of Science Fiction and Science Fact (Reaktion Books, 2025).
Did cocoons of dense gas shine brightly in the early universe?
Read article: ‘Little red dots’ could herald the birth of supermassive black holes
In a novel three-tiered hierarchical system, the star CD-35 2722 is orbited by a brown dwarf that, in turn, is orbited by a newly discovered exosatellite candidate
Read article: Discovery of giant ‘exosatellite’ challenges our notion of what makes a moon
New analysis of JWST observations suggests that the Bullet Cluster of galaxies might only have half as much dark matter as previously believed
Read article: Does the Bullet Cluster contain a lot less dark matter than we thought?
A space-based system could help deflect potentially catastrophic interplanetary weather
Read article: Can we create a shield to protect Earth from solar storms?
Artemis II has returned humanity to the Moon, gripping the whole world. Keith Cooper follows the mission’s journey and looks at what comes next for humans in space
Read article: One giant leap: Artemis II returns humanity to the Moon
Observations appear to rule out MOND, but not everyone agrees
Read article: Newton’s law describes gravity on cosmological scales, galaxy clusters reveal
Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists intend to find out
Read article: Exploring the icy moons of the solar system
From Bohemian solutions and binary battles to new parameters and novel experiments, the dark matter vs MOND clash rages on
Read article: MOND versus dark matter: the clash for cosmology’s soul
Keith Cooper explores rival theories, ambitious experiments and the ongoing race to understand why so much of the universe is invisible
Read article: Dark matter’s secret identity: WIMPs or axions?
Keith Cooper digs into the struggles and successes of modifying gravity, 40 years since its conception
Read article: Cosmic combat: delving into the battle between dark matter and modified gravity