This year's Edinburgh Fringe features a nicely-green show in which the audience travels through the city on bikes to eavesdrop on other cyclists' thoughts and record their own.
First question they might ponder: how many of us drove or flew here?
If you drive to Edinburgh you will get through about 1,350 tonnes of precursor plant material each way.
Gargantuan black hole may be a remnant from the dawn of the universe
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Astronomers were puzzled by a black hole around 50 million times the mass
of the sun with no stars, spotted by the James Webb Space Telescope – now
simulat...
5 hours ago



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