R.F. Kuang and Olivie Blake get existential in new short stories collection "The Time Traveler's Passport." We ask them where ...

Time travel paradoxes like the grandfather problem and causal loops show how the universe may resist changes or trap actions in endless cycles.

Longevity labs, “immortality islands” and grapeseed pills are part of China’s national project to conquer aging, despite ...

MIT scientists uncovered direct evidence of unconventional superconductivity in magic-angle graphene by observing a distinctive V-shaped energy gap. The discovery hints that electron pairing in this ...