What are the heat exhaustion and heatstroke symptoms?

Michelle Roberts Digital health editor Getty Images During hot weather, it can be easy to overheat. Although heat exhaustion is not usually serious – as long as you can cool yourself down – heatstroke is a medical emergency which requires immediate treatment. What is the difference between heat exhaustion and heatstroke? Heat exhaustion happens when…

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Massive thread of hot gas found linking galaxies — and it’s 10 times the mass of the Milky Way

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the Universe’s ‘missing’ matter, addressing a decades-long mystery. The astronomers used the European Space Agency’s XMM-Newton and JAXA’s Suzaku X-ray space telescopes to make the discovery. Over one-third…

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