EPS SCI 9
Solar System and Planets
Lecture and discussion.
Winter 2027: 1 lecture and 10 discussions. Nothing here is open. The oldest of these readings was about 2 months ago.
Grades
3.75
Average grade awarded in EPS SCI 9. Not a student rating: this is what the grades were.
In the A range
83%
of the 2,268 letter grades
D, F or W
1.6%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
4%
95% of those passed
The registrar's own records: 2,268 grades over 13 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
4 of those terms are summer sessions, and summer sessions are counted here.
The table below splits them, and term averages across those 13 terms ran 2.79 to 3.97.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 1,066 · 47.0%
- A 644 · 28.4%
- A- 167 · 7.4%
- B+ 121 · 5.3%
- B 102 · 4.5%
- B- 48 · 2.1%
- C+ 42 · 1.9%
- C 30 · 1.3%
- C- 13 · 0.6%
- D+ 7 · 0.3%
- D 12 · 0.5%
- D- 3 · 0.1%
- F 13 · 0.6%
- P 87 of 2,369
- NP 5 of 2,369
- I 8 of 2,369
- DR 1 of 2,369
Percentages are of the 2,268 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), incompletes (I), and withdrawals (DR).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
Withdrawals are the exception to "excluded": DR is not scored, but it IS counted in the D, F or W figure above, which is reported over the letter grades plus the withdrawals. Pass/no pass and S/U outcomes are outside that figure on both sides.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Winter 2027 |
|---|---|---|---|---|---|---|---|
| YOUNG, EDWARD DONALD reviews ↗ | 3.87 | 3.87 | 994 | 4 | 90% | very light | not teaching it |
| JEWITT, DAVID CLIFFORD reviews ↗ | 3.59 | 3.58 | 408 | 1 | 73% | light | not teaching it |
| SCHLICHTING, HILKE ELISABETH reviews ↗ | 3.87 | 3.88 | 267 | 1 | 94% | light | not teaching it |
| DAY, MACKENZIE DENALI reviews ↗ | 3.53 | 3.51 | 212 | 1 | 68% | very light | not teaching it |
| MAINZER, AMY reviews ↗ | 3.72 | 3.72 | 161 | 1 | 80% | very light | not teaching it |
| KAVNER, ABBY reviews ↗ | 3.89 | 3.91 | 144 | 1 | 93% | average | not teaching it |
| RUBIN, ALAN E reviews ↗ | 3.07 | 2.93 | 82 | 4 | 28% | light | not teaching it |
| AN, XIN reviews ↗ | 3.25 | 2.79 | 18 · | 1 | 22% | - | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Reported assignments across instructors and terms. This term's syllabus may differ.
No assignment details are available in this review summary. Based on 140 reviews; source checked about 2 months ago. Missing details do not mean there are no papers or exams. Check the current syllabus.
In Winters
Ran in 2 of the last 4 Winters, so it turns up in Winter sometimes rather than dependably.
From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Properties of sun, planets, asteroids, and comets. Astronomical observations relevant to understanding solar system and its origin. Dynamical problems, including examination of fallacious hypotheses. Meteoritic evidence regarding earliest history of solar system. Chemical models of solar nebula. Space exploration and its planning. P/NP or letter grading.
Sections in Winter 2027
Choose an open discussion to enroll; an open lecture alone does not mean a seat is available.
Seat counts as of : the oldest of these 11 readings. Seat readings are snapshots, not live availability. Their timestamps show when dibs last checked.
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Seats
Not published yetLecture: no enrollment count published
Instructor
Not yet assigned
3.74Predicted GPA
Historical records across all instructors; 2,268 letter gradesSeat risk
no history10 discussions. The registrar has not published seat counts for them yet.Every discussion, with its time and seats: 10 discussions
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Final enrollment, averaged across each term's sections: between 149 and 423 a term over 8 terms, summer excluded, most recently 181 in Fall 2025. That is the shape across years, not this term, which is above.
Seats over time in Winter 2027
Read once so far, so there is no line to draw yet.
What turns this into a chart
A second reading is what turns this into a chart: courses come round within about three hours, and a lecture somebody is watching goes to the front of the pass. Watching is on the lecture's own page, not this one.
How readings and alerts work
Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.
Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.
The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.
From the people who took it
Student reviews
What taking EPS SCI 9 was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.
Looking for more perspectives?
External reviews are separate and do not count toward the dibs rating.