Pantless people stand on a subway platform on January 13, 2013 in New York City. Thousands of people participated in the 12th annual No Pants Subway Ride, organized by New York City prank collective Improv Everywhere. During the afternoon winter event, participants boarded separate subway stops and removed their pants, pretending that they did not know each other. The event, refered to as a “celebration of silliness” is designed to make fellow subway riders laugh and smile. (Photo by Timothy A. Clary/AFP Photo)

Members of Krewe Delusion, one of the the first parades of the Mardi Gras festivities, through the French Quarter of New Orleans January 31, 2015. (Photo by Lee Celano/Reuters)

Victoria's Secret Angels Candice Swanepoel and Erin Heatherton attend Victoria's Secret Very s*xy Tour stop in New York at the Victoria's Secret at Herald Square on March 13, 2012 in New York City. (Photo by Jamie McCarthy/Getty Images for Victoria's Secret)

Pedestrians and traffic cross Tower Bridge as viewed through a glass viewing platform on the high-level Walkways during a preview to launch the new viewing experience at the Tower Bridge Exhibition centre in London on November 10, 2014. The new glass flooring at the Tower Bridge Exhibition 42 metres above the river Thames will allow visitors to gaze down on the bridge and river and allow them to experience the bridge opening from above. (Photo by Andrew Cowie/AFP Photo)

Women dressed in traditional Chinese costumes wait perform in celebration of the Chinese New Year at the Nankinmachi square, China Town on February 8, 2016 in Kobe, Japan. In Nankinmachi, the district known as Kobe Chinatown, tourists enjoyed Chinese food, lion dance and the parade organized to celebrate the Lunar New Year. (Photo by Buddhika Weerasinghe/Getty Images)

Mira Saville, 11, spins in her petticoat on the sand at the Nashuva Spiritual Community Jewish New Year celebration on Venice Beach in Los Angeles, California, United States September 14, 2015. As Jews take part in the Tashlich prayer, a Rosh Hashanah ritual, bread crumbs are tossed into the waters to symbolically cast away sins. (Photo by Lucy Nicholson/Reuters)

A Comic Con attendee poses during the 2014 New York Comic Con at Jacob Javitz Center on October 9, 2014 in New York City. (Photo by Daniel Zuchnik/Getty Images)

Microsoft co-founder Paul Allen has spent the last six years working on a giant aircraft capable of launching rockets to space. Today, his company Stratolaunch Systems literally rolled that plane out of its hangar in the Mojave Desert for the first time ever.