The mission to Mars is underway, but NASA administrator Jim Bridenstine says humans could have been to Mars already if not for "political risks."

Technological capabilities is a big challenge that NASA is constantly working to overcome, but the NASA official reveals that there have been other obstacles that have been standing in the way of humans and Mars.

In an interview on CBS' Face the Nation, Bridenstine said that not only is there a technical risk in venturing out onto space, but scientists also have to contend with the political risk involved. If not for these issues, the head of NASA said that the team would have been back to the moon.

"We would be on Mars, quite frankly, by now had it not been for the political risk," Bridenstine said, adding that funding is also constantly an issue for the missions of the space agency.

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