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  • “Exploration is in our nature.” - Carl Sagan

The Day of Action is The Planetary Society's premier global advocacy event. We provide opportunities for members to take direct action to support planetary exploration, planetary defense, and the search for life.

Registration for the in-person event is now closed. However, you can pledge to take online actions in support of our advocates on April 29th by signing up via the following form:

Pledge to Take Online Action on April 29th

If you pledge, we will email you with instructions and special opportunities to email and make phone calls to your members of Congress. Pledging is free.

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This is how we work for space in Washington D.C. Participants share their experiences from the 2023 Day of Action.

Day of Action 2019

Frequently Asked Questions

Have questions about our annual Day of Action? We've got answers.

Planetary Society members at the U.S. Capitol

Testimonials

Our Day of Action in Washington, D.C. is a fun and invigorating experience. But don't take our word for it.

Rings over Washington D.C.

Travel Information for Visiting Congress

Visiting Congress? Here's our recommendations for getting there, where to stay, and how to get around Washington, D.C.