Planet formation

2 articles
  • Article Recirculation Lead Image

    How ‘Oumuamua Got Shredded

    ‘Oumuamua may be a piece of a torn-apart comet, gravitationally launched into interstellar space, that roamed the galaxy before dropping on our doorstep.ESO / M. Kornmesser / Wikicommons Nautilus Members enjoy an ad-free experience. Log in or Join now . Our solar system’s first houseguest—at least, the first one we have seen in our midst—is […]
  • big ol collision

    The Genetics of the Earth and Moon

    Imagine that two very similar-looking neighbors undergo a genetic test. The exam shows that the pair’s genetic fingerprints are virtually identical. They feel a flash of shock and excitement. What does this mean? Could they be long-lost twins, separated in a hospital mixup? Nautilus Members enjoy an ad-free experience. Log in or Join now . […]