YA novel from ca. 1960s in which humans reemerge after waiting out a mini ice age underground
107453
An old juvenile novel about a small group walking across the frozen Atlantic Ocean?
92828
Watching "Gravity" reminded me of a short story I read in the 60s, but can't place now
76448
Novel about a replica of earth where history happened slightly differently after the ~1940s
144490
'80s sci-fi novel about about an astronaut returning to Earth to find it devoid of human life
35600
Short story - 60s or earlier - meteorite is actually crashed alien ship full of tiny insect-sized beings
96055
Finding a book with a man from the future being reincarnated on Earth in past times
96690
Looking for 1970's SF novel title where people travel to other planets by transmitting their consciousness to a replica body at the destination
80328
YA novel - kid finds some kind of time traveling creature
45148
Short story about survivors on Earth after the atmosphere has frozen
38564
Trying to identify pre-1970s short story involving multiple humans absorbed into an alien blob
97727
Children's short story about material that accelerates away from gravity
39822
Looking for a short story about the icy end of the world
141480
Help identifing a book about people exiled to the distant past
17389
Need help recalling name of sci-if story about earth evolving into electronic life forms
81915
70s(?) science fiction novel: teenage boy builds his own spacecraft which pulls/pushes gravity, is stranded on Mars when a vacuum tube burns out
124530
Looking for young adult book, possible from the last 10-15 years
76070
Novel about people living in a virtual reality on a spaceship, only discovering this over time