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When a black hole is created by gravitational collapse, it rapidly settles down to a stationary state, which is characterized by only three parameters: the mass, the angular momentum (state of rotation) and the electric charge. Apart from
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Space Opera Fans
— 5391 members
— last activity 9 hours, 50 min ago
If you like space opera: an epic scale adventure through the galaxy with military battles, interplanetary politics, realistic interpersonal relationsh ...more
Alternate Realities: A Scifi Book Club
— 436 members
— last activity Dec 21, 2025 06:46AM
Online book club discussion of Scifi books. We will pick a book to read each month through polls, so be sure to vote. Hopefully we broaden our reading ...more
Around the Year in 52 Books
— 10975 members
— last activity 8 minutes ago
~ 2026 Reading Challenge ~ 52 books for 52 weeks. Each week, members read the book of their choice for that week's challenge requirement. ▶︎ CURREN ...more
Kushagra’s 2025 Year in Books
Take a look at Kushagra’s Year in Books, including some fun facts about their reading.
650 books
|
203 friends
7,275 books
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2,608 friends
216 books
|
213 friends
83 books
|
249 friends
126 books
|
176 friends
37 books
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99 friends
16 books
|
322 friends
35 books
|
263 friends
More friends…
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Polls voted on by Kushagra
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