4 papers
Physical Analysis of Bennu Samples Reveals Regolith Production by Collisional Disruption on Near-Earth Asteroids
R. -L. Ballouz, A. J. Ryan, R. J. Macke +25
Owing to the extremely low gravity of small near-Earth asteroids (NEAs), it has been assumed that impact-generated rock fragments escape into space and thus do not contribute to th…
Dynamics of planetary rings under thermal forces
Wen-Han Zhou, Eiichiro Kokubo, Harrison Agrusa +5
Planetary rings provide natural laboratories for studying the fundamental processes that govern the evolution of planetary systems. However, several key features, such as the sharp…
Satellite formation around the largest asteroids
Kevin J. Walsh, Ronald-Louis Ballouz, Harrison F. Agrusa +3
Satellites around large asteroids are preferentially found among those with the most rapid rotation and elongated shape. The taxonomic statistics are similarly skewed; in total, 13…
A Mission to Demonstrate Rapid-Response Flyby Reconnaissance for Planetary Defense
Nancy L. Chabot, Justin A. Atchison, Rylie Bull +13
International and U.S. strategies and protocols have identified the need to develop rapid-response spacecraft reconnaissance capabilities as a priority to advance planetary defense…