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Fox News host Bill O'Reilly responded to first lady Michelle Obama's speech at the Democratic National Convention, where she described what it's like to wake up every morning in a house built by slaves.

American political conventions are, at their heart, stages for telling stories. We've heard many of these over the last several days, by Republicans and Democrats. From the former group, we've listened to stories of a nation that's broken and in crisis, its citizens threatened by foreigners and each other. "I alone can fix it," says Donald Trump, this nation's savior.

Matt Tisdale's Air Cam doesn't fly as high, or as fast, as most planes, but he says it's one of the most relaxing planes to fly, and it has a great view.

During a press conference, Republican Nominee Donald Trump discussed the email hack of the DNC, and addressed Russia directly.

Out in the desert, just off Electric Avenue east of Sparks, Nevada, over 1,000 workers are building what will be the largest building in the world in terms of its footprint over the ground.

The latest round of testing for a new Alzheimer's drug didn't produce the results researchers hoped for, but a small number of patients did see some benefit from the medication.

Oprah Winfrey is reportedly going to team up with her "Selma" director again.

Tuesday was going to be a historic day and California Democrats weren't taking any chances.They didn't want Hillary Clinton's moment spoiled. So the early delegates -- Clinton supporters -- surrounded the microphone to crowd out the boisterous supporters of Bernie Sanders.

They are teenagers and young adults. Yet in their short lives they each have been touched by terror.

The protests happen with such frequency, the images seem like deja vu: Demonstrators flooding city streets, demanding an end to excessive police force and chanting "black lives matter."

A little cockroach milk with those cookies? Chock full of protein, the insect milk may someday be transformed into a food supplement worthy of human consumption, new research indicates.

Would you like to ride a "motorcycle in the sky"? That's how one pilot describes an experimental plane he built himself.

CNN's Oren Liebermann takes a look inside Space IL, the Israeli company that wants to put a rover on the moon as part of Google's Lunar XPRIZE competition.

Democrats turned to Hollywood stars for the attacks on Donald Trump and mothers of slain African-American children to back Hillary Clinton on the second night of the party's convention Tuesday.

The Democratic Party gathered in Philadelphia on Tuesday for the second night of its convention, and CNN's Reality Check Team put the speakers' statements and assertions to the test.

Former Democratic National Committee chairman Howard Dean reenacts a moment from his famous 2004 campaign speech.

Barack Obama has long insisted that Donald Trump will be defeated in November. But these days, the President won't rule anything out.

Okay, VMAs, let's get in formation.

Aaron Rodgers is happy to talk football, but "The Bachelorette" not so much.