President Trump joked Tuesday that it would be a “great idea” to send Congress on an intergalactic — and perhaps one-way — journey into space.

Trump signed a bill Tuesday in the Oval Office that authorized funding for NASA. Flanked by the bill’s co-authors, Sens. Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats MORE (R-Texas) and Marco Rubio Marco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE (R-Fla.), the legislation asks NASA to send a “crewed mission to Mars in the 2030s.”

The president — who earlier Tuesday pressed Republicans at a closed-door meeting at the Capitol to pass the GOP's ObamaCare repeal bill — praised the nation’s “heroic astronauts,” before noting the difficulty of the profession.

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"It's a pretty tough job," Trump said, according to a White House pool report. He then turned to his former Republican presidential primary opponents and inquired, “I don’t know, Ted, would you like to do it? I don’t think I would.”

Cruz shook his head to express an unwillingness to slip on a space suit.

“Marco, do you want to do it?” Trump then asked Rubio.

“I’m not sure we want to do it,” the president concluded.

But then Cruz offered up some perhaps unwilling space-traveling volunteers.

“You could send Congress to space,” he suggested.

"We could," Trump, who's clashed with lawmakers on both sides of the aisle before, said to laughs as he turned towards Vice President Pence. "What a great idea that could be."