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Twinkle, twinkle, giant stars! Pairs of so-called ‘heartbeat’ stars change their brightness like the rhythm of a beating heart. For the first time, new models show that they also create gigantic waves.

Written by Sarah Kellett Can we power our homes with the process that powers stars? Nuclear fusion offers to do just that, and scientists are looking for ways to harness this energy with experiments that run hotter than the Sun.