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Assuming extraterrestrials exist, should humans try to contact them?Space ExplorationJul. 23, 2021
Are robots a better choice than humans to explore Mars and other deep-space destinations?The Mars MissionFeb. 21, 2020
Should the private sector take over the management and design of U.S. space exploration from NASA?New Space RaceAug. 4, 2017
Is asteroid retrieval a good step toward a human Mars mission?Search for Life On New PlanetsJun. 20, 2014
Is the United States in danger of losing a space race to China?Space ProgramFeb. 24, 2012
Should space weapons be banned?Weapons in SpaceAug. 16, 2011
Should the United States aim to send humans to Mars?Human SpaceflightOct. 16, 2009
Should the private sector be the driving force behind U.S. manned space flight in the near future?NASA's FutureMay 23, 2003
Should the United States proceed with plans to build the International Space Station?New Challenges in SpaceJul. 23, 1999
Should the Russian government be involved in building the International space station?Space Program's FutureApr. 25, 1997
Should the space station be built?Space Program's FutureDec. 24, 1993
Should the United States support manned space exploration?Uncertain Future for Man in SpaceMar. 29, 1991