The poll found that 67 per cent of Americans wish to see astronauts return to the moon, with 65 per cent supporting missions to Mars.
Support for space exploration is consistent across all age demographics, with younger adults aged 18-29 showing the highest favourability at 71 per cent.
A significant majority, 77 per cent, believe the 1969 moon landing was a worthwhile endeavour.
Most Americans also feel that space exploration contributes positively to both national pride and scientific advancements.