In a major space policy speech in April 2010, Obama announced a planned change in direction at NASA, the U.S. space agency. He ended plans for a return of human spaceflight to the moon and development of the Ares I rocket, Ares V rocket and Constellation program, in favor of funding Earth science projects, a new rocket type, research and development for an eventual crewed mission to Mars, and ongoing missions to the International Space Station.[213]

Obama visits an Aurora shooting victim at University of Colorado Hospital, 2012.
On January 16, 2013, one month after the Sandy Hook Elementary School shooting, Obama signed 23 executive orders and outlined a series of sweeping proposals regarding gun control.[214] He urged Congress to reintroduce an expired ban on military-style assault weapons, such as those used in several recent mass shootings, impose limits on ammunition magazines to 10 rounds, introduce background checks on all gun sales, pass a ban on possession and sale of armor-piercing bullets, introduce harsher penalties for gun-traffickers, especially unlicensed dealers who buy arms for criminals and approving the appointment of the head of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives for the first time since 2006.