Amazon CEO Jeff Bezos said Monday that his aerospace company, Blue Origin, is his "most important" project.

Bezos made the comments at the Wired 25th anniversary summit in San Francisco, according to CNBC.

He added that he expects there to one day be 1 trillion humans living somewhere in the solar system other than Earth.

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"I won't be alive to see the fulfillment of that long-term mission," he said. "We are starting to bump up against the absolute true fact that Earth is finite."

Bezos also said he will spend more than $1 billion next year to support Blue Origin.

"The dynamism that I have seen over the last 20 years in the internet where incredible things have happened in really short periods of time," he added. "We need thousands of companies. We need the same dynamism in space that we've seen online over the last 20 years. And we can do that."