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 2025 Day of Action will open in the Winter of 2024.

Read the recap of the 2024 Day of Action.

Research has shown that in-person constituent meetings are the most effective way to engage elected officials on topics like space exploration. If you believe in a future of space, this is the way to show it.

Registration includes:

  • Online and in-person advocacy training from The Planetary Society's space policy team
  • A minimum of three meetings with congressional offices booked for you by The Planetary Society with opportunities for more
  • Access to special events, social gatherings, and space-themed experiences for you and fellow members while you're in D.C.

Not included:

  • Travel to and lodging in Washington, D.C.


Anyone is welcome to participate, whether you're an experienced space advocate or a new space fan. Minors must be accompanied by a parent or guardian.

Citizenship Requirements:

Anyone with a U.S. address is welcome to attend.

What's it like?

Check out this video of our Day of Action event in 2023 for a good sense of the experience:

This content is hosted by a third party (, which uses marketing cookies. Please accept marketing cookies to watch this video.

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

Frequently Asked Questions

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


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

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.