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Dibs Fall 2026

A&O SCI M7

Perils of Space: Introduction to Space Weather

(Same as Earth, Planetary, and Space Sciences M7.) Lecture, three hours; discussion, one hour. Concepts of plasma physics. Dynamic sun, solar wind, and Earth's magnetosphere and ionosphere. Space storms and substorms and their impacts on astronauts, spacecraft, and surface power and communication grids. P/NP or letter grading.

Course statistics

Predicted GPA
3.79
n = 88 · 3 terms · ± 0.055
A range
84%
of letter grades
Taken P/NP
3%
100% of those passed
D / F / W
0.0%
incl. withdrawals

Sections in Fall 2026

Sections offered, with live enrollment and predicted GPA
Section Status Enrolled Seat risk Meets Instructor Predicted GPA
Lec 1 Open
13 of 45
29% full
 seats likely MW 2:00pm-3:15pm Varney, R.H.
3.75n=48 · this instructor

Enrollment history

Final enrollment per term, averaged across that term's sections. Four years deep, summer excluded. Per-section live curves are on each section page.

  • 1523W
  • 4023F
  • 3624F
Enrolment by term: 23W 15, 23F 40, 24F 36
Peak 40 Most recent 36 in 24F 3 terms on record

Grade distribution

  • A+ 42 · 46.2%
  • A 23 · 25.3%
  • A- 9 · 9.9%
  • B+ 5 · 5.5%
  • B 7 · 7.7%
  • B- 1 · 1.1%
  • C+ 1 · 1.1%
  • P 3 · 3.3%

Grey bars are non-letter outcomes — P/NP, S/U, incompletes. They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.

By instructor

Instructor Predicted Raw n Terms A range
VARNEY, ROGER HALE 3.75 3.74 48 2 77%
CAO, HAO 3.88 3.91 40 1 93%

“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.

By term