NASA Photos of President Obama's Second Inauguration: Page 4

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Inaugural Float

A replica of the Curiosity rover is transported on its way to Monday's inaugural parade float staging area, Sunday, Jan. 20, 2013, in Washington.

Orion Space Capsule Replica Ready for Parade

A replica of the Orion Multi-Purpose Crew Vehicle (Orion MPCV) is transported its way to Monday's inaugural parade float staging area, Sunday, Jan. 20, 2013, in Washington.

Orion Space Capsule Replica On Way for Parade

Replicas of the Orion Multi-Purpose Crew Vehicle (Orion MPCV), front, and the Mars Curiosity Rover are transported under police escort along Interstate 295 on their way to Monday's inaugural parade float staging area, Sunday, Jan. 20, 2013, in Washington.

Orion Space Capsule Replica

A replica of the Orion Multi-Purpose Crew Vehicle (Orion MPCV) is seen as it rolls past NASA Headquarters, background, on its way to Monday's inaugural parade float staging area, Sunday, Jan. 20, 2013, in Washington.

NASA Children's Science Event

School children are given a hands-on experience with a mock spacesuit during a Science, Technology, Engineering, and Math (STEM) education event held at the Ritz-Carlton Hotel in Arlington, VA on Saturday, Jan. 19, 2013.

Astronaut Leland Melvin Talks to Young Girl at NASA Science Event

NASA Astronaut and Associate Administrator for Education, Leland Melvin, talks to school children during an Science, Technology, Engineering, and Math (STEM) education event held at the Ritz-Carlton Hotel in Arlington, VA on Saturday, Jan. 19, 2013.

Students Watch Mars Rover Curiosity

School children watch a TV program showing how the Mars rover Curiosity landed on Mars during an Science, Technology, Engineering, and Math (STEM) education event held at the Ritz-Carlton Hotel in Arlington, VA on Saturday, Jan. 19, 2013.

Students Amazed by Space Food

School children react to food shrinking in a vacuum chamber during an Science, Technology, Engineering, and Math (STEM) education event held at the Ritz-Carlton Hotel in Arlington, VA on Saturday, Jan. 19, 2013.

Students Listen to Astronaut Leland Melvin

NASA Children's Science Event- STEM

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Tom Chao has contributed to SPACE.com as a producer and writer since 2000. As a writer and editor, he has worked for the Voyager Company, Time Inc. New Media, HarperCollins and Worth Publishers. He has a bachelor’s degree in Cinema Production from the University of Southern California, and a master’s degree from NYU’s Gallatin School of Individualized Study. To find out what his latest project is, you can follow Tom on Google+.