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Lecturer III
Richard Keen
Astrophysical & Planetary Sci. · University of Colorado - Boulder
Beats 28.0% of professors on The Curve.
ELO
1,458
Global rank
#1,224,845
of 1,701,525
Percentile
28.0%
Avg. rating
2.7
out of 5
Difficulty
3.2
out of 5
Reviews
13
Among all 1,701,525 professors
Among professors at University of Colorado - Boulder