Contributions to Dark Energy Discovery
Expert in Asteroid Detection and Characterization
Studied Stellar Orbits Near Milky Way's Black Hole
Classified Over 350,000 Stars
Co-developed HR Diagram for Star Classification
Estimated Size of the Milky Way Galaxy
Significant Work on Variable Stars
Renowned Astrophysics Educator
Contributed to Discovery of Accelerating Universe
Australian computer programmer and amateur astronomer, known for his discoveries of the 2009 and 2010 Jupiter impact events
Researched Interstellar Clouds and Star Birth
American astronomer, best known for his work on star formation and on the history of astronomy
Key Figure in Establishing Cosmology
Solar Observations and Astrophysical Studies
Notable for Stellar Astronomy Research