Which "Earth" is seen in "Crossroads, Part II"?
73931
Why did the original-Earth have continents that resembled the ones on the final-Earth?
1018
Help identify the title of a story about the back side of moon being missing
149442
What are the other versions of earth in the Marvel universe/multiverse?
131816
Identify sci-fi short story about last man and woman on earth
31752
CG series about a beast planet
121028
Aliens target wrong planet, causing life on Earth rather than destroying it
69807
What is the difference between the two "worlds" when going thru the day/night wormhole at the altar?
76448
Novel about a replica of earth where history happened slightly differently after the ~1940s
46896
How exactly is Arda supposed to be an ancient Earth?
9378
Why is the earth a viable return path for power distribution?
125074
Earth as Water World, invasion at climax, fought off
150922
Identification of a sci-fi book or book series based on the description of two alien races
10553
Does the universe have an edge/boundary/barrier? If yes, what is at the edge?
31135
Movie with a returning probe/satellite, an alien infection, and a nuke at the end
109921
What is the name of the black&white movie about a mirror Earth (universe)?
142054
Seeking title / author of a story about alien first contact with Earth
105726
Book: World covered in trees that are miles high