Staffan de Mistura; Gravitational waves: Walter Isaacson, Brian Greene, Dennis Overbye

20/20 continues to combine hard-hitting investigative reports, newsmaker interviews and compelling human interest and feature stories.

The Academy Awards or The Oscars is an annual American awards ceremony honoring cinematic achievements in the film industry.

The Righteous Gemstones tells the story of a world-famous televangelist family with a long tradition of deviance, greed and charitable work, all in the name of the Lord Jesus Christ.

Side Quest will explore the lives of employees, players and fans who are impacted by the game. The new extension series takes a page out of the acclaimed departure episodes of "Mythic Quest," including the upcoming episode "Sarian." 

Each week on Naked and Afraid, a new pair of complete and total strangers - one man and one woman - will find themselves stranded in and, quite literally, exposed to one of the world's most extreme weather environments. This duo will be left high and dry with no food, no water... and no clothes. They must survive on their own for a full 21 days, with nothing but one personal item each and the knowledge that the only prize is their pride and sense of accomplishment.