r/trolleyproblem

A Reddit community for sharing and discussing science-based psychological material.

A subreddit for discussion on transit systems and transportation all over the world: including buses, trains, trams, streetcars, bicycles, etc. Also relevant are transportation planning, transportation engineering, and design.

A subreddit to discuss and showcase gemstones!

Here you can ask any question you have about being a scientist, what's new in a field, what's going to happen in a field, or are curious about how we got to this point.

For your astronomy-related questions and content!

/r/askphilosophy aims to provide serious, well-researched answers to philosophical questions.

Reference questions answered here. Get the answers you are looking for! Please make sure to look over the community rules before posting.

A sub for "scientific skepticism." Scientific Skepticism is about combining knowledge of science, philosophy, and critical thinking with careful analysis to help identify flawed reasoning and deception.

A place to discuss Sam Harris and to have difficult conversations with civility.

A place to share your heritage, genetic ancestry, and explore the amazing family stories people have to share!

All about studying and students of computer science.