New York (CNN Business) Apollo 11 astronaut Michael Collins wants to see a Mars landing -- and he has doubts about President Trump's leadership on the matter.

In an interview for the new CNN podcast "Apollo 11: Beyond the Moon," Collins was asked about Trump's space exploration strategy.

Collins quipped, "I don't think he's too much aware of Mars. Maybe he doesn't understand that there is a planet Mars."

Trump's past comments about NASA have been about focusing on a return to the moon first.

Collins -- the command module pilot for the Apollo 11 moon landing mission in 1969 -- said he recognizes that many experts see the moon as a gateway expedition to Mars. But he holds the minority view and believes Mars should be the priority.

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