Is there a second arrow of time?

The second law of thermodynamics famously pushes the universe toward disorder. Could there be another, overlooked law of nature at work, leading to increasing order? That’s the bold idea at …

The mystery of dark matter

It’s one of the great puzzles in astrophysics: The stars and galaxies that we can see through our best telescopes are only a small fraction of the matter that we …

Episode 39 of BookLab is up!

Tech billionaires talk about colonizing Mars, building grand space stations far from Earth, lengthening life spans, and maybe even eradicating aging and death, or uploading our minds into computers. Well, …