Cosmic History Semester 1

Tuesdays, noon–1 p.m. ET • January 25–May 21, 2027

What you'll get

01
Explore cosmic history
Follow the story of the universe, the formation of Earth, and the beginnings of life.
02
Spring semester
15 instructional weeks plus two break weeks, with break dates to be announced. Sessions last 45–60 minutes. All times are Eastern Time, following U.S. daylight saving time.
03
Tuition is per family
All learners from the same family may attend under one registration, with no additional charge. Limited to 10 families.
04
Payment options
$150 once or 3 monthly payments of $60 ($180 total). Before January 1, 2027: $135 once or 3 monthly payments of $54 ($162 total).
05
Family discounts
For two classes, use RHLSECOND50 on the cheapest class. For three classes, use RHLTHIRD25 on the next cheapest. Combines with early registration and applies to all three monthly payments.
06
Private class community
Registration includes access to RHL Live Classes for announcements, questions, and discussion.
Tuition is per family, not per learner. All learners from the same family may attend under one registration, with no additional charge.

Multi-class discounts

Choose your family’s classes and register separately for each. Apply RHLSECOND50 to the cheapest class for 50% off; for three classes, apply RHLTHIRD25 to the next cheapest for 25% off. These discounts combine with early registration and apply to all three monthly payments.


Multi-class discounts are based on the classes you remain enrolled in. If you withdraw from a class, the cost of your remaining enrollment will be recalculated using the discount, if any, that still applies. Any discount you no longer qualify for will be deducted from your eligible refund. All other refund deadlines and conditions still apply.
RHL Class Information and Policies


Ready to get started?

Tuesdays, noon–1 p.m. ET • January 25–May 21, 2027

Explore the course

Visit the course page to learn more about the curriculum.