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Hard SF
— 1215 members
— last activity Oct 15, 2026 12:28AM
This is a discussion group for this specific subgenre in SF where the plausibility of the science counts.
Science Book Club
— 344 members
— last activity Apr 14, 2026 10:04PM
Objective: We read science-related books; the goal is to read one book a month.
Science and Inquiry
— 4571 members
— last activity 7 hours, 55 min ago
This Group explores scientific topics. We have an active monthly book club, as well as discussions on a variety of topics including science in the new ...more
Underground Knowledge — A discussion group
— 26433 members
— last activity 5 hours, 53 min ago
This global discussion group has been designed to encourage debates about important and underreported issues of our era. All you need is an enquiring ...more
Wiktor’s 2025 Year in Books
Take a look at Wiktor’s Year in Books, including some fun facts about their reading.
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