Data from lost Hitomi satellite suggests black holes may be galactic regulators

Earlier this year, the Japan Aerospace Exploration Agency (JAXA) launched its Hitomi satellite into space. The x-ray satellite was intended to study, among other things, the Perseus cluster, a massive cluster of galaxies more than 200 million light years from Earth. Hitomi was the most advanced x-ray satellite to launch successfully into space and had the potential to lead to …