Inconsistencies explained by an alternate timeline, originating from First Contact?
56308
How can the Next Generation's unfamiliarity with the Borg be explained after Archer's encounter?
130124
Is it possible to learn about an event that occurred outside of your observable universe?
27820
What's wrong with this experiment showing that either FTL communication is possible or complementarity doesn't hold?
123193
How was Skynet created in the original timeline?
37443
How can something happen when time does not exist?
905
Where do the timelines of X-Men: The Last Stand and X-Men: Days of Future Past lie exactly?
70112
If Back to the Future uses different timelines, why did Marty begin to fade?
25747
Wouldn't the thermodynamic cost of creating alternate universes make the Many Worlds interpretation implausible?
151587
Are there in-universe explanations for how some species' appearances change between series?
83341
How can Planck units be consistent with conflicting dimensions of mass?
108892
When did our universe and the Star Trek universe diverge?
116067
Back To The Future: moving in time but not in space?
117371
Is Time travel in "Star Trek: Enterprise" totally illogical?
131511
Red Dwarf: time and space travel paradoxes in "Tikka to Ride"?
62073
Wormhole-like tunnels used to look back in time
140959
Is there a pair of alien species, one in Star Wars, one in Star Trek, that are too similar for coincidence?
114934
Bootstrap Paradox in Interstellar