Learn more: http://to.pbs.org/1j3lrxl President Barack Obama on Thursday addressed the deadly shootings that left 10 people, including the shooter, dead at Umpqua Community College in Roseburg, Oregon. "We are the only advanced country on Earth that sees these shootings every few months."

While filming coral off the Solomon Islands, David Gruber, a National Geographic Emerging Explorer, encountered a "bright red-and-green spaceship." This underwater UFO turned out to be a hawksbill sea turtle, which is significant because it's the first time that biofluorescence has ever been seen in...

Highlights from a Sept. 28, 2015, briefing with NASA officials discussing the strongest evidence yet that liquid water flows intermittently on present-day Mars.

Pope Francis takes part in service at 9/11 museum's Foundation Hall.

Highlights from Broadway Backwards 2015 included Chicago's "six merry murderesses" were represented in a sexy, all-male version of "Cell Block Tango" featuring Joshua Buscher-West, Marty Lawson, Alfie Parker Jr., Waldemar Quinones-Villanueva, Alex Ringler and Ryan Steele.

Viola Davis wins the 2015 Emmy for Outstanding Lead Actress in a Drama Series.

John Stewart explains how much his life has changed since not being on TV anymore whilst accepting the Emmy for Outstanding Variety Talk Series.

Complete with nominees. Lucille Ball is stunned to receive her 3rd Emmy, her first of two for "The Lucy Show". It had been 11 years since she won her lastEmmy in 1956 (for the calendar year of 1955) not 14 as she states.

Rain Dove never saw herself as a supermodel, but her androgynous looks and unique gender-bending style took New York's fashion scene by storm. See how this self-proclaimed "gender capitalist" deals with building her personal brand and a hectic audition schedule one week before September's New York F...

Mad Men’s final season has been nominated for a 2015 EMMY award. The final season deals with the mystery of Don Drape as well as with the women on the show, their failed relationships and romances in the world of advertising.