Now playing Next USA Stratolaunch, world's largest airplane, may be grounded after just one flight The company that built the huge aircraft was established by Microsoft co-founder Paul Allen, who died last October. 03/06/2019
Now playing Next United Kingdom Donald Trump UK: Who is happy about the visit and who is not amused? The British capital was buzzing ahead of US President Donald Trump's state visit on Monday. Who is in favour of America's most powerful man visiting the island and who is feeling less positive? 03/06/2019
Now playing Next United Kingdom Watch back: US President Trump joins the Queen at state banquet U.S. President Donald Trump and First Lady Melania arrive in Britain for a three-day state visit. Britain's Queen Elizabeth will greet Trump and Melania with a welcome ceremony outside Buckingham Palace. 02/06/2019
Now playing Next USA Ocasio-Cortez gets back behind the bar to mix it up for a cause close to her heart The freshman lawmaker said she was worried that she'd lost her touch with the cocktail shaker. But she hadn't. 01/06/2019
Now playing Next USA Trump's latest tariff threat undermines his own trade deal First Read is your briefing from "Meet the Press" and the NBC Political Unit on the day's most important political stories and why they matter. 31/05/2019
Now playing Next USA Jay Inslee tops Greenpeace climate grades, Joe Biden gets a D- The environmental group evaluated the 2020 candidates on support for the Green New Deal and opposition to fossil fuels. 30/05/2019
Now playing Next USA House investigations of Trump and his administration: The full list The president says it's "harassment." Democrats say they're playing catch-up after two years with virtually no oversight from Republicans. 27/05/2019
Now playing Next USA 100 years ago, this eclipse proved Einstein right and changed our understanding of the universe When the moon blotted out the sun on May 29, 1919, scientists were able to confirm the physicist's theory of relativity. 27/05/2019
Now playing Next USA Sanders: Trump and Kim Jong Un agree on assessment of Biden "I think they agree in their assessment of former Vice President Joe Biden," the White House press secretary said in an exclusive interview. 27/05/2019
Now playing Next Living Meet the artist who created an air quality tasting menu Michael Pinsky asks questions about how we pollute and litter our cities and draws attention to the beauty and tragedy of our world. 26/05/2019
Now playing Next USA A 'Fornite' player's lawsuit against his own team is taking on the 'Wild West' of esports "I don't know how likely it is to build an esports union but I do think it's absolutely a necessity," one industry expert said. 26/05/2019
Now playing Next USA Trump turns the full force of the government on perceived political enemies Analysis: The president is wielding power in ways not seen in the United States in generations — if ever. 24/05/2019
Now playing Next World What does it feel like to go to space? On July 20, Luca Parmitano is scheduled to leave Earth on his second mission, becoming the first Italian to take up the role of International Space Station Commander. 24/05/2019
Now playing Next USA Trump doesn't understand what 'treason' means It doesn't mean being disloyal to the president, and it would not apply to any actions against a private citizen — which Donald Trump was as a candidate. 24/05/2019
Now playing Next USA NOAA predicts 'near-normal' hurricane season ahead NOAA is predicting a 70 percent chance of nine to 15 named storms. Of those, four to eight could become hurricanes, including two to four "major" hurricanes that reach Category 3 or higher. 23/05/2019
Now playing Next USA After infrastructure blowup, Trump owns Washington gridlock First Read is your briefing from "Meet the Press" and the NBC Political Unit on the day's most important political stories and why they matter. 23/05/2019
Now playing Next USA Trump called it the ''i word." What is impeachment and how does it work? The Constitution provides that a president can be impeached for "treason, bribery, or other high crimes and misdemeanors." 22/05/2019