Commentator-comic Bill Maher plays devil's advocate with religion as he talks to believers about their faith. Traveling around the world, Maher...

Bill Nye is retiring his kid show act in a bid to become more like his late professor, astronomer Carl Sagan. Sagan dreamed of launching a...

An in-depth look at the race to develop, manufacture and distribute a vaccine for Covid-19 - which may be the most monumental scientific...