Paul Kalas Browse All Authors Top 4 quotes by Paul Kalas One of the mysteries arising from the study of exoplanets is that we see systems where the planets are misaligned, even though they are born in a flat, circular disk, maybe a cosmic tsunami hit these systems and rearranged everything about them, but we havent had proof. Paul Kalas science Stellar flybys have been used to explain the evolution of our own solar system, hD 106906 offers a rare example where such a flyby happened recently and may have perturbed its distant giant planet. Paul Kalas science Stars need to pass very close to a planetary system to have significant effect. Paul Kalas science We think the whole [fat Jupiter] system has recently been disturbed by some violent gravitational interaction, though we're not sure exactly what happened, something recently happened that kicked it out. Paul Kalas top-news