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
1185 members — last activity Jan 23, 2026 11:14AM
Mark's comments (1)
26989
Goodreads Authors/Readers
56087 members — last activity 1 hour, 57 min ago
Mark's comments (0)
109465
The Evolution of Science Fiction
1865 members — last activity 6 hours, 58 min ago
Mark's comments (0)
currently reading
Hominids by Robert J. Sawyer
45059
Sci-fi and Heroic Fantasy
8766 members — last activity 32 minutes ago
Mark's comments (0)
1139
Science and Inquiry
4488 members — last activity Feb 20, 2026 09:34AM
Mark's comments (0)
55570
Science and Natural History
1134 members — last activity Sep 22, 2020 01:21PM
Mark's comments (0)
207975
Astronomy and Space exploration
287 members — last activity Jan 20, 2025 08:33PM
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Upcoming Bookclub Reads

Pathogenesis: A History of the World in Eight Plagues
Pathogenesis: A History of the World in Eight P...
by
Mar 01 in Science and Inquiry    view »
Our Lady of the Artilects
Our Lady of the Artilects
by
Mar 01 in The Evolution of Science Fiction    view »