"Plan C for Civilization" takes stock of the amateurs and experts who see promise in using technology to cool the Earth.

NetflixBryan Johnson is an unusual fellow by anyone’s standards. A millionaire venture capitalist and anti-ageing evangelist, he wants to push his lifespan and “healthspan” to the very limits by ...

This year is the 25th anniversary of humans inhabiting the International Space Station. A new PBS documentary looks at how the ISS was built and the challenges of surviving in outer space.

John Hendricks, mastermind behind Discovery Communications, started Curiosity Stream to offer top-quality content on a wide ...

Analysis of Adolf Hitler’s DNA reveals he may have had a rare genetic disorder that delays puberty, a new documentary says. Experts say that more details are needed.