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ASTR 3

Nature of the Universe

5 units Physical Sciences

Sections & times

Lecture and lab. The registrar has published a final exam time.

Fall 2026: 2 lectures and 10 discussions. 2 lectures and 8 discussions are open. The oldest of these readings was 3 hours ago.

Grades

3.23

Average grade awarded in ASTR 3. Not a student rating: this is what the grades were.

In the A range

49%

of the 2,646 letter grades

D, F or W

4.4%

of every letter grade awarded, plus withdrawals

Taken pass/no pass

8%

91% of those passed

The registrar's own records: 2,646 grades over 13 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.

What is inside that record

No summer session is in that record.

The table below splits them, and term averages across those 13 terms ran 2.82 to 3.61.

Historical grades for GATKINE, PRADIP, across recorded terms. The course summary above includes all professors.

  • A+ 16 · 15.2%
  • A 25 · 23.8%
  • A- 17 · 16.2%
  • B+ 9 · 8.6%
  • B 10 · 9.5%
  • B- 13 · 12.4%
  • C+ 4 · 3.8%
  • C 3 · 2.9%
  • C- 2 · 1.9%
  • D 1 · 1.0%
  • D- 4 · 3.8%
  • F 1 · 1.0%
  • P 5 of 111
  • I 1 of 111

Percentages are of the 105 letter grades. Grey bars are non-letter outcomes: passes (P) and incompletes (I).

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.

By instructor

Predicted GPA, raw average, sample size, terms, A range and the workload reviewers reported for every instructor with a grade record in this course
Instructor Predicted GPA Raw n Terms A range Workload Fall 2026
TURNER, JEAN L reviews ↗ 3.38 3.38 398 3 51% light not teaching it
LARKIN, JAMES E reviews ↗ 3.20 3.20 381 3 46% light not teaching it
FITZGERALD, MICHAEL P reviews ↗ 2.96 2.95 324 4 35% average not teaching it
YU, TZE YEUNG MATHEW reviews ↗ 3.45 3.47 279 2 66% very light not teaching it
TREU, TOMMASO L reviews ↗ 3.21 3.21 269 2 52% average not teaching it
SHAPLEY, ALICE EVE reviews ↗ 3.14 3.13 240 2 40% light Open, 17 seats left
SALTZBERG, DAVID reviews ↗ 3.28 3.28 204 2 55% light not teaching it
RICH, MICHAEL reviews ↗ 3.07 3.05 187 2 41% very heavy not teaching it
TURYSHEV, SLAVA G reviews ↗ 3.66 3.71 140 1 79% - not teaching it
MALKAN, MATTHEW ARNOLD reviews ↗ 2.94 2.90 119 1 31% - not teaching it
GATKINE, PRADIP reviews ↗ 3.27 3.28 105 1 55% - Open, 9 seats left
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.

Reviews for ASTR 3

Workload and assignments

Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.

dibs has read this course’s reviews and none of them say what kind of work it sets, so dibs has nothing to show rather than a guess. Read from 376 reviews about 1 month ago. That is the reviewers being silent, and not a course that sets no work.

Read the source reviews

In Falls

Ran in 5 of the last 5 Falls.

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; laboratory, two hours. Not open to students with credit for or currently enrolled in course 81 or 82. No special mathematical preparation required beyond that necessary for admission to UCLA in freshman standing. Course for general UCLA students, normally not intending to major in physical sciences. Introduction to vast range of cosmic phenomena including planets in our solar system and beyond, stars, supernova explosions, black holes, galaxies, and universe as whole. P/NP or letter grading.

Sections in Fall 2026

You enroll in the discussion, not the lecture, so a discussion's status is the one that decides whether you get in. A lecture can read open while every discussion under it is full.

Seat counts as of : the oldest of these 14 readings. Seat readings are snapshots, not live availability. Their timestamps show when dibs last checked.

Final enrollment, averaged across each term's sections: between 71 and 160 a term over 13 terms, summer excluded, most recently 118 in Fall 2025. That is the shape across years, not this term, which is above.

From the people who took it

Student reviews

What taking ASTR 3 was like: the work, the teaching, and what students wish they’d known.

Write a review

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.

Read reviews on BruinWalk

Community guidelines

Seats over time in Fall 2026

How each lecture has filled since dibs first saw it. This course runs 2 lectures; the legend under the chart picks one.

A dot is a reading where something moved: the seat count, the status, or the waitlist.

What a flat run means, and where a line starts

Flat between dots means it did not drift, it held and then jumped, and a line starts when dibs first saw that lecture rather than reaching back before it existed. A lecture that has never moved draws a flat line across the whole window, and one with two or three readings draws a line joining them, which is too few to read a trend from.

Lec 1 · Gatkine, P. · 136 of 174 enrolled

Nothing read since 1 Oct, 3 hours ago. Over about 2 months before that, filled by 40.

136 of 174 · 9 left in its discussions
17 Aug 12:329 Sep 00:521 Oct 13:12 · 3 hours ago
dibs read 168 of the 554 hours its hourly record covers, 30%, and did not look in 386. dibs had no hourly record before 8 Sep, which is the other 528 of 1082 plotted.136 of 174 enrolled at the newest reading, 3 hours ago, with 9 left in its discussions. Seats from 17 Aug 12:32 to 1 Oct 13:12, 96 to 136. dibs read 168 of the 554 hours its hourly record here covers, 30%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 386 hours dibs was keeping a record and did not reach this section. Nothing before 8 September at 12:00, where this section's record starts, has a read either way, which is 528 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

Lec 2 · Shapley, A.E. · 128 of 174 enrolled

Nothing read since 1 Oct, 3 hours ago. Over about 2 months before that, filled by 28.

128 of 174 · 17 left in its discussions
17 Aug 12:329 Sep 00:521 Oct 13:12 · 3 hours ago
dibs read 168 of the 554 hours its hourly record covers, 30%, and did not look in 386. dibs had no hourly record before 8 Sep, which is the other 528 of 1082 plotted.128 of 174 enrolled at the newest reading, 3 hours ago, with 17 left in its discussions. Seats from 17 Aug 12:32 to 1 Oct 13:12, 100 to 128. dibs read 168 of the 554 hours its hourly record here covers, 30%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 386 hours dibs was keeping a record and did not reach this section. Nothing before 8 September at 12:00, where this section's record starts, has a read either way, which is 528 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

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.