Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Any uncertainty in the calculation of the object’s orbit causes variations in the predicted solution. Instead of one precise ...

Time, as we experience it on Earth, may not be as constant as we imagine. According to Einstein’s theory of general ...

For decades, physicists have faced one of science’s greatest puzzles: merging quantum mechanics, which describes tiny ...

Sign in by entering the code we sent to , or clicking the magic link in the email. As my arms lift from my sides, and the rest of my body follows suit toward the ceiling of a modified Boeing 727—next ...