Tomorrowland movie and tachyons?
11307
Is time travel possible? Is it possible to go back in time?
74443
YA Time travel/teleportation novel. Plot required using helmet (or other head gear)
94948
Book about time portals inside an asteroid in Earth orbit
123193
How was Skynet created in the original timeline?
18644
Looking for an old-old sci-fi tale about time-traveling
122841
How does earth based technology interact with alien technology
16817
What would happen to a teaspoon of neutron star material if released on Earth?
108501
Japanese UFO movie with a mission to Venus
64560
Are Doctor Who and Star Trek: the Next Generation canon-compatible?
128413
Movie with "Where do the tubes go?"
97581
Film about alien/android that molds facial features
102346
Old Budrys(?) end-of-world/alien invasion of NYC story
905
Where do the timelines of X-Men: The Last Stand and X-Men: Days of Future Past lie exactly?
11587
Need title of early sci-fi Mars movie
22744
Why are two such similar movies being made at the same time?
128075
Using nuclear devices to terraform Mars: Elon Musk's nuclear proposal?
93642
Trying to find a Sci-Fi movie, probably from the 50's or 60's