Is it possible for us to choose freely if we live in a world like this? Although based in physics, the Twin Paradox is a treasure trove of philosophy regarding time, existence, and identity.

What are the chances?! The twin paradox invites you to imagine a pair of identical twins who decide to take part in an experiment. They decide that twin A is going to remain on Earth, while twin B ...

Since Einstein's twin paradox, the idea of twins and space exploration has been on many people's minds. NASA's twin study is far from Einstein's work, but it helped us understand something ...