When a star weighs a little too close to a black hole, we know – broadly – what is happening. The intense tidal forces tore the star apart in what is called a tidal disruption event, releasing one last burst of light before the star’s rumble passes the event horizon. …
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A rare fusion between clusters of galaxies has just revealed an even rarer face. Astronomers have found a large, low-frequency radio ‘bridge’ between the two, spanning a distance of 6.5 million light-years – evidence of a magnetic field that connects them in the early stages of the merging process. It …
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The oceans of the world have been transformed into a true sponge for our emissions, and new climate models suggest that we have passed them on immediately. Since the 1950s, the vast water bodies of our planet have absorbed about 93 percent of the energy in the climate system, and …
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