Chappell Natural Philosophy Society
The foundations of physics are still open questions.
A worldwide community of independent scientists and thinkers re-examining relativity, the aether, and the structure of the cosmos — in the open.
1,600+
Papers archived
30+
Years of open inquiry
305
Live sessions held
10,788
Wiki pages
Ways to take part
Four doors into the community
Whether you want to debate, present, publish, or just follow along — there’s a place to start.
The Forum
Ongoing debate on relativity, aether theory, and experimental physics on our Discourse community.
Live Discussions
Weekly video roundtables on experiments and ideas — from Brillet–Hall to plasma cosmology.
Wiki & Database
The World Science Database — thousands of papers and author profiles, plus the Natural Philosophy Wiki.
Membership
Join to present at conferences, publish in the proceedings, and support independent inquiry.
Weekly on YouTube
On the screen
A Novel Approach to Explain Why Galaxies Don't Appear to Obey Newtonian Gravity with Jim Marsen
Starts August 1, 2026 · 7:00 am PDT
2026 Fundraiser
Keep independent science open
CNPS runs on members and donors — no institutions, no gatekeepers. Your support keeps the archive, the wiki, and the conversations free for everyone.