Brightest-Ever Space Explosion Reveals Possib...

In 1852, the mathematician Francis Guthrie was coloring in a map of English counties when he noticed that he needed only four colors. Was this always true, he wondered? The question captured the imagination of hobbyists and professionals alike — and in 1976, the mathematicians Ke ...  Show more

Researchers have used metamathematical techniques to show that certain theorems that look superficially distinct are in fact logically equivalent.The article ‘Reverse Mathematics’ Illuminates Why Hard Problems Are Hard first appeared on Quanta Magazine. 

EXTREME UNIVERSE! (Hint: It's not the sun)

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It’s been an unusual week for astronomers, with telescopes swivelled off course to observe GRB221009A, the brightest gamma ray burst ever recorded. Gamma ray bursts aren’t unusual, the by-product of some supernovae are recorded weekly. Whilst the afterglow of these bursts usually ...  Show more

Dan shares one of the biggest stories of his career - his discovery of an excess of gamma rays at the center of the Milky Way. Is this a sign of dark matter, or is it something less mysterious?

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00:45 A coronal mass ejection from a distant starResearchers have detected what they say is the strongest evidence yet of a coronal mass ejection (CME) coming from a star other than our Sun. CMEs are massive bursts of fast-moving plasma that can be detected thanks to the characte ...  Show more