Asteroids in the Inner Solar System by Dr. Sarah Greenstreet

Ha Le

August 24, 2021

Asteroid Institute Researcher, Dr. Sarah Greenstreet was featured in Physics Today describing how models and observations of asteroid orbits reveal their dynamic lives.


Photo credit of Asteroid Bennu: NASA / Goddard / University of Arizona)

In a recent feature article in Physics Today, Asteroid Institute Senior Researcher, Dr. Sarah Greenstreet highlights how and why the solar system is quite far from an unvarying static environment due to the interactions between the planets and asteroids. She describes how the gravitational influence of the planets over small bodies, particularly those in the solar system’s inner regions, has modified many asteroid orbits in quite dramatic ways, leading to their very dynamic lives. You can read the full article here. 

About Dr. Sarah Greenstreet:

Sarah is a B612 Asteroid Institute Senior Researcher. Her research interests revolve around orbital dynamics problems in the Solar System. This includes studying main-belt asteroid resonances, resonant mechanisms that create asteroids on retrograde orbits, co-orbital Solar System objects, impact, and crater formation rates, near-Earth object population modeling, and Earth impact probabilities and hazard mitigation. She has also used observations for near-Earth object follow-up and characterization and confirming that predicted asteroids undergo the Yarkovsky effect. She received her Ph.D. in 2015 from the University of British Columbia. 

Ha Le