Dr. Sarah Greenstreet

Assistant Professor

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Biography

Sarah Greenstreet is an Affiliate Assistant Professor in the Department of Astronomy at the University of Washington, specializing in Solar System science. She obtained her Ph.D. in Astronomy from the University of British Columbia in 2015, following an MSc in Astronomy from the same institution in 2011, and a B.S. in Physics from Western Washington University in 2007. Her research focuses on the dynamics of small celestial bodies within the Solar System, particularly near-Earth objects, main-belt asteroids, and Kuiper Belt objects. Greenstreet’s work emphasizes resonant dynamics of these small bodies and explores retrograde orbits, planetary co-orbitals, and impact crater formation rates, specifically on celestial bodies such as Pluto and Charon. In addition, she is involved in studying asteroid-Earth impact probabilities and hazard mitigation strategies, while also creating open-source software to enhance data analysis in her field. Her commitment to advancing knowledge in the domain of time domain astronomy and computation has established her as a prominent figure in her research community.

Research Interests

Requirements for University of Washington

Master Program
Requirements
GPA Requirement
Required:3
TOEFL
Total
Required:80
IELTS
Overall
Required:6.5
Duolingo
Overall Score
Required:105
Overall
Required:105
Prerequisites
Bachelor's degree from a regionally accredited college or university
Application Checklist
  • Online application
  • Transcripts
  • Statement of Purpose
  • Letters of Recommendation
  • Resume/CV
  • English proficiency scores (for international students)
Specialization Notes

Standard Graduate School requirements for University of Washington apply to most departments listed unless specified otherwise by the program.