NASA plans to return astronauts to the moon by 2020 , build outpost by 2025 . Comment: Critics say NASA should skip the moon and set its sights directly on Mars . Watch why there is a new space race » . Independent panel is reviewing plans and looking at `` potential alternatives ''
NASA plans to return astronauts to the moon by 2020 , build outpost by 2025 . Comment: Critics say NASA should skip the moon and set its sights directly on Mars . Independent panel is reviewing plans and looking at `` potential alternatives ''