Katherine Kornei

All Stories by Katherine Kornei

  1. Astronomy

    A celestial loner might be the first known rogue black hole

    The object could be the first isolated stellar-mass black hole identified in the Milky Way — or it might be an unusually heavy neutron star.

  2. Planetary Science

    NASA’s InSight lander has recorded the largest Marsquake yet

    The magnitude 5 temblor, detected May 4, will help scientists learn more about the Red Planet’s interior.

  3. Climate

    Coastal cities around the globe are sinking

    Of 99 coastal cities, nearly one-third are sinking in some places at more than a centimeter per year, making them more vulnerable to rising seas.

  4. Oceans

    Some deep-sea octopuses aren’t the long-haul moms scientists thought they were

    Off California’s coast, some octopuses lay eggs in the warmer water of geothermal springs in the “Octopus Garden,” speeding up their development.