Guests: Journalist Mona Eltahawy, director Charles H. Ferguson, conservative columnist John Fund, Rep. Anthony Weiner (D-NY), astrophysicist Neil deGrasse Tyson

Topics: Egyptian protests, financial meltdown, RNC in debt, Kepler (spacecraft), NASA going to Mars, Clarence & Ginny Thomas, Civil War celebrations in the south, GOProud at CPAC

Guests: Ex-Obama economy adviser Christina Romer, Astrophysicist Neil DeGrasse Tyson, Salon editor-at-large Joan Walsh, Palin biography filmmaker Stephen K Bannon and chef Anthony Bourdain.

Topics: US credit downgrade, debt ceiling deal, failure of the stimulus package, inability of Democrats to negotiate, 'job creators', defunding of science in America, Rick Perry's prayer festival, escaping poverty, would Hillary Clinton have been better, need for a left-wing tea party equivalent.

Guests: Former Senator Russ Feingold (D-WI), former Vice Chairman of General Motors Bob Lutz, Democratic strategist James Carville, astrophysicist Neil deGrasse Tyson, journalist John Heilemann.

Topics: Rush Limbaugh's 'slut' comments, campaign finance and Super PACs, Rick Santorum self destructing, 'Blunt' healthcare amendment, the highjacking of the Republican establishment, the auto bailout, climate change, the space program, the importance of scientific advancement, the liberal bubble and the 'joke candidate'.

Interviewee: Ann Coulter (author)

Panelists: Debbie Wasserman Schultz (Rep. D-FL), Neil deGrasse Tyson (scientist), Rob Reiner (filmmaker)

Panel Guest: Rob Lowe (actor, "Killing Kennedy")

Topics: Obama's lie about current health care plans, Ted Cruz, Sr., women in politics, Rob Lowe as JFK, US embargo against Cuba, Kessler Syndrome, NSA spying, Republicans should appeal to stoners.

"Cosmos" star Neil deGrasse Tyson, Democracy Now's Amy Goodman, Freedomworks' Matt Kibbe, GOP Strategist Hogan Gidley.

Neil Degrasse Tyson, Richard Dawkins, Adam Gopnik, Matt Welch, and Angela Rye.

Bill's guests include Hayden Planetarium director Neil Degrasse Tyson, "Double Cup Love" author Eddie Huang, Daily Beast editor-in-chief John Avlon, venture capitalist Nick Hanauer, and Reason magazine's Matt Welch.

Bill's interview guest is former special assistant to President Donald Trump, Boris Epshteyn. Bill's roundtable include: Princeton professor and social justice activist Cornell West, former Obama advisor and senior editor of the Atlantic, David Frum and astrophysicist Neil DeGrasse Tyson.

Political strategist Steve Bannon; astrophysicist Neil deGrasse Tyson; author Max Brooks; national security analyst Evelyn Farkas; reporter April Ryan.

Guests: Susan Rice, Neil deGrasse Tyson, Sam Stein, Danielle Pletka & Thomas Chatterton Williams

Opening the show this week, Bill interviews astrophysicist Neil deGrasse Tyson. On the panel, he is joined by filmmaker Rob Reiner and political scientist Rachel Bitecofer.

This week, Bill opens the show by interviewing Benjamin Netanyahu, the former Prime Minister of Israel. For the panel, he is joined by columnist Michael Smerconish and astrophysicist Neil deGrasse Tyson.