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Mark Yashar's Profile > Mark's Groups

Groups Mark is a member of Showing 1-8 of 8
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15629
Fans of Arthur C. Clarke
104 members — last activity Jun 01, 2019 11:56AM
Mark's comments (1)
954
Hard SF
1194 members — last activity Apr 09, 2026 12:48AM
Mark's comments (1)
26989
Goodreads Authors/Readers
56366 members — last activity 28 minutes ago
Mark's comments (0)
109465
The Evolution of Science Fiction
1888 members — last activity 3 hours, 16 min ago
Mark's comments (0)
currently reading
Star Maker by Olaf Stapledon
45059
Sci-fi and Heroic Fantasy
8814 members — last activity 21 hours, 7 min ago
Mark's comments (0)
1139
Science and Inquiry
4497 members — last activity Apr 06, 2026 06:46PM
Mark's comments (0)
currently reading
Becoming Earth by Ferris Jabr
55570
Science and Natural History
1135 members — last activity Sep 22, 2020 01:21PM
Mark's comments (0)
207975
Astronomy and Space exploration
294 members — last activity Feb 23, 2026 02:08AM
Mark's comments (0)

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Upcoming Bookclub Reads

Air-Borne: The Hidden History of the Life We Breathe
Air-Borne: The Hidden History of the Life We Br...
by
May 01 in Science and Inquiry    view »
The Chrysalids
The Chrysalids
by
May 01 in The Evolution of Science Fiction    view »
Our Lady of the Artilects
Our Lady of the Artilects
by
Sep 01 in The Evolution of Science Fiction    view »