A few Danish computer scientists have solved a years-long mathematical puzzle that lay dormant for decades, after researchers made insignificant progress since the 1990s. The abstract problem in question is part of what is called graph theory, and specifically deals with the challenge of finding an algorithm to solve the …
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The benefits of wearing face masks to support the spread of COVID-19 are now well understood, but scientists are still looking for better materials to use – and a ‘filter paper’ made of titanium oxide nanowires shows much promise. The new material is so good at capturing pathogens, and destroying …
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When we look at intergalactic space, evidence for dark matter is everywhere. It is in the rotation of galaxies, which cannot be explained by observable matter alone. It is in the way galaxies cluster together and the path of light as it travels through the Universe. We can’t see dark …
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