A young exoplanet called HIP 67522 b orbits its host star so tightly that it’s slowly destroying itself. The planet whips around the star in under 10 days, releasing waves of magnetic energy as it goes. When these bursts of energy hit the star, they trigger a flare that fires a huge dose of radiation back at the planet, stripping away some of the planet’s atmosphere each time. The findings are the first recorded instance of a planet magnetically influencing the behaviour of its star.
