You learn something new every day; what did you learn today? Submit interesting and specific facts about something that you just found out here.

The Kerbal Space Program subreddit. For all your gaming related, space exploration needs. http://kerbalspaceprogram.com

A subreddit for sharing those miniature epiphanies you have that highlight the oddities within the familiar.

Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology

A community for Antarctica

A place for pictures and photographs.

Ask a science question, get a science answer.

A place for major news from around the world, excluding US-internal news.

This community is a place to share and discuss new scientific research. Read about the latest advances in astronomy, biology, medicine, physics, social science, and more. Find and submit new publications and popular science coverage of current research.

The subreddit for fans of Avatar: The Last Airbender, The Legend of Korra, the comics, the upcoming Avatar Studios animated movies and other projects, novels, games, and all other Avatar content.

The amateur hobby of humanity since the dawn of time and scientific study of celestial objects.

Writing Prompts. You're a writer and you just want to flex those muscles? You've come to the right place! If you see a prompt you like, simply write a short story based on it. Get comments from others, and leave commentary for other people's works. Let's help each other.

Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations. Don't Panic!

Ask away!

r/AskReddit is the place to ask and answer thought-provoking questions.

The funniest sub on Reddit. Hundreds of jokes posted each day, and some of them aren't even reposts! Join our discord: https://discord.gg/jokes

The best links to click while you're stoned! Psychedelic, mindfucking, mesmerizing, reality-distorting or trippy games, video, audio & images that make a sober person feel stoned, or stoned person trip harder! Come for mindfucks and self-inflicted gaslighting. Or the hypnotic or mesmerising. Vivid colors, intense patterns. Mind-blowing science and philosophy. Chill or trippy music. Surrealism, absurdism and strangeness. Reminder: This is not a "reaction subreddit".

/r/OldSchoolCool **History's cool kids, looking fantastic!** A pictorial and video celebration of history's coolest kids, everything from beatniks to bikers, mods to rude boys, hippies to ravers. And everything in between. If you've found a photo, or a photo essay, of people from the past looking fantastic, here's the place to share it.

Welcome to r/Futurology, a subreddit devoted to the field of Future(s) Studies and speculation about the development of humanity, technology, and civilization.

Reddit's main subreddit for videos. Please read the sidebar below for our rules.

I Am A, where the mundane becomes fascinating and the outrageous suddenly seems normal.

The subreddit for Astroneer, an interplanetary sandbox adventure/exploration game developed by System Era Softworks. Build outposts, shape landscapes to your liking or discover long lost relics. The choice is yours. Explore, Survive, Thrive.

Anything related to aircraft, airplanes, aviation and flying. Helicopters & rotorcraft, airships, balloons, paragliders, winged suits and anything that sustains you in the air is acceptable to post here.

A subreddit for those who enjoy learning about flags, their place in society past and present, and their design characteristics

For discussion of Frontier Developments Planet Zoo game. Out Now!

The place for news articles about current events in the United States and the rest of the world. Discuss it all here.

The aim of /r/Physics is to build a subreddit frequented by physicists, scientists, and those with a passion for physics. Papers from physics journals (free or otherwise) are encouraged. Posts should be pertinent, meme-free, and generate a discussion about physics. Please report trolls and incorrect/misleading comments.

A place to find and share amazing things.

Reddit's Official home for Microsoft Flight Simulator.

Welcome to r/Funny, Reddit's largest humour depository.