The orbital structure of the asteroid belt holds a record of the solar system's dynamical history. The current belt only contains ∼10-3 Earth masses yet the asteroids' orbits are dynamically excited, with a large spread ...

Only a small number of exoplanets have been identified in stellar cluster environments. We initiated a high angular resolution direct imaging search using the Hubble Space Telescope (HST) and its Near-Infrared Camera and ...

Context. In the classical core-accretion planet-formation scenario, rapid inward migration and accretion timescales of kilometer sizeplanetesimals may not favor the formation of massive cores of giant planets before the ...

Context. Most planet formation models that incorporate planetesimal fragmentation consider a catastrophic impact energy threshold for basalts at a constant velocity of 3 km/s throughout the process of the formation of the ...