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Fire in the sky
Jonathan Horner | May 27, 2019Over the past few days a pair of spectacular fireballs have graced Australia’s skies, but what’s the science behind them?
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Why dangerous asteroids heading to Earth are so hard to detect
Jonathan Horner | March 25, 2019Earth is often in the firing line of fragments of asteroids and comets, most of which burn up tens of kilometres above our heads. But occasionally, something larger gets through, and we seldom see it coming.