The Darker Side of Science

If you've ever wondered what plutonium tastes like, whether atoms have colors or how long it's taken our planet to travel from the other side of the galaxy, look no further. You have found your tribe. This Facebook group is all about the wonder of science, and covers a wide range of fields, such as biology, astronomy, physics, mathematics, archaeology and loads more. There are cartoons too. And memes. And jokes. Even a passing Monty Python reference. The content is mainly for people who don't mind letting their grey bits do a daily workout. 

Members: 753.6k at time of writing

Trigger Warnings: None.

Go here to visit or join. 

Cat Memes

Any cat owner will recognize the wonderfully ironic contradiction that is inherent in their pets. They are adorable, yet aloof. Intelligent, and silly. Dignified, yet playful. Independent, yet uncannily symbiotic with their humans. Any cat owner will find many of the cat memes instantly recognizable, as it expresses both the love and exasperation that many feel towards their cats. Cuteness overload may happen, especially when there are kittens involved. Many memes will make you laugh out loud or chuckle quietly. This Facebook group for cat lovers is the perfect cure for a rainy day and one of the best things to add to your news feed. 

Members: 1.1 million, at time of writing

Trigger Warnings: none

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Forever Fall and Halloween

 If you love the smell of pumpkin spice and the sound of anything that goes bang or boo in the dark, then this Facebook Group is most definitely for you. There are many posts about horror movies to get you into the mood for Halloween. I also enjoyed several spooky art interpretations. Get ideas for porch decorations, costume design and other assorted accessories. Pay a virtual visit to some spooky places. For anyone who believes that Halloween should not be limited to one day or even one season. 

Members: 1.9 million at time of writing.

Trigger Warnings: Horror and all things witchy. Avoid if you are overly religious.

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Rome and Constantinople (New Rome). The Roman (and Byzantine) Empire

How often do you think of the Roman Empire? Daily? Weekly? Whatever your answer to this TikTok trending question, the Roman Empire remains relevant for the role it played in shaping the world we live in. Our current calendar is based on one devised by Julius Caesar and our legal system contains numerous concepts that have their roots in Rome. For a daily dose of Roman history posts, you could do worse than including this Facebook group in your social media news-feed. What's interesting is that it focuses not only on ancient city of Rome, but also the later divided kingdom, and the eastern empire that was centered in Constantinople. You will see glorious Byzantine churches, ruins in Tunisia, coins, forts and much, much more. There are also numerous posts that analyze the legacy of important figures from Rome and the Byzantium. 

Members: 30.4k at the time of writing.

Trigger Warnings: Non-English posts (which can be translated)

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A Gathering of Crones... Reoccupying archetypes of the mature feminine

As a mature woman well on the way to cronedom (or is it cronehood?), I am already enthralled by this Facebook group's name. So naturally, I had to investigate. And I was not disappointed. One of the very first posts, contained a ode to the wonders of feminine solidarity. The community celebrates creativity and wisdom. It's a wonderful, wonderful space. Recognize those little flints of yourself in snapshots, cats, woods and hedges, quotes, artwork and so much more that puts women of a certain age at the heart of the universe, where they undoubtedly belong. Discover the magic that hides inside everyday things. By random chance, my visit coincided with the Wednesday Crones Bazaar Day event.

Members: 16.6k, at time of writing. 

Trigger Warnings: None

Go here to visit or join.

Update - this group has been changed to private under a slightly different name, WORLDWIDE CIRCLE OF CRONES - 29 March 2026.

Raypunk

The term Raypunk was coined to describe stories and images that hark back to the ideals and plots of classic era science fiction. Think back to the pulp publications of the 1950s and 1960s, to rayguns, little green men and tentacled monsters. It's all there in lurid detail, ranging from classic cover art to high drama among the stars and on distant planets. There are also cartoons featuring Raypunk humor, little digs at Lovecraftian images and thought-provoking fan art that takes its inspiration from Raypunk's retro-futuristic aesthetic. Some of the art is really good and what I liked about this Facebook group that there is a strong tradition of crediting featured artists. 

Members: 166.2k at time of writing

Trigger Warnings: Scantily clad young women; sexist humor

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Phucked Up and Filosophical

 So, how about a title that goes with Friday. Well, sort of. What I liked about this online community, is its willingness to assess the human race honesty - warts and all - and, let's be honest, as a species, we do have many short-comings. It's a great place for finding that snarky come-back to almost any situation or taking pot-shots at normality - from a safe distance, of course. There are somewhat more text-only posts than I see in many Facebook groups, which is not necessarily a bad thing. Hang out with the filosophers for mental gymnastics, sometimes chilling sentiments and reality checks, as well as quotes by anyone from Carl Jung to Hunter S. Thompson. 

Members: 242.1k, at time of writing

Trigger Warnings: Cuss words

Go here to visit or join.