Solar System’s moons such as Europa or Enceladus have thin crusts over deep oceans while the planet Mercury has a thin crust over a large metallic core. Thin sheets may wrinkle in universal ways. Europa has linear features, Enceladus has ‘tiger stripes,’ and Mercury has lobate scarps. Neutron stars may have analogous features. According to new research, these neutron-star mountains could produce detectable oscillations of space and time known...
