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AN ACT To amend the National Prohibition Act, as amended and supplemented. March 2, 1929 1446
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The 18th Amendment to the Constitution prohibited the "manufacture, sale, or transportation of intoxicating liquors..." and was ratified by the states on January 16, 1919. The movement to prohibit alcohol began in the United States in the early nineteenth century. On October 28, 1919, Congress passed the Volstead Act, which provided for the enforcement of the 18th Amendment. Prohibition ended on December 5, 1933, with the ratification of the 21st Amendment
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Left, Eros; top right, Ida and its moon Dactyl; middle left, Vesta; middle right, Golevka; bottom right, Eros.
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Animation illustrating the orbit of asteroid 2010 TK7, the first known Earth Trojan asteroid as identified by NEOWISE.
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Close-up images of the surface of asteroid Eros taken by the NEAR Shoemaker spacecraft.
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Video tour of asteroid Bennu with footage from the OSIRIS-REx mission.
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Asteroid Bennu ejecting particles from its surface; a result of two combined images from the OSIRIS-REx spacecraft.
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OSIRIS-Rex mission placing sample collector into its return capsule.
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Video of notable features on asteroid Ceres, collected by NASA's Dawn spacecraft.
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Informational video about an asteroid passing Earth in April 2020 as well as additional information about asteroids and related NASA programs.
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Report outlining the tasks, conclusions, and plans for future work on NEO tracking and gravity tractor performance.
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Updated report documenting the output and findings of the Science Definition Team.
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NEO report to congress on the findings and recommendations from their survey program.
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Fact Sheet on Asteroid 2018 LA, including orbit, observational, and mitigation information.
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Fact Sheet on Asteroid 2020 SW, including orbit, observational, and mitigation information.
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Status report on the International Asteroid Warning Network (IAWN) and the Space Mission Planning Advisory Group (SMPAG) and proposed criteria for impact responses
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Summary of current strategies and research on the deflection of potentially hazardous NEOs.
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Fact sheet for OSIRIS-REx Asteroid Sample Return Mission
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Fact Sheet for the Double Asteroid Redirection Test (DART), NASA's first planetary defense mission.
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Center for Near Earth Object Studies
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Planetary Defense Coordination Office Update to Astronomy and Astrophysics Advisory Committee.
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Informational brochure about NEOs and international response to potential impact threats from the UN Office for Outer Space Affairs.
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Projection of Asteroid Atira's Orbit
Credit: NASA Jet Propulsion Laboratory
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Projection of Asteroid Aten's Orbit
Credit: NASA Jet Propulsion Laboratory