These rocks initially captured scientists’ attention last year when Perseverance found them, with speculation starting quickly that they could’ve been caused by ancient life. But now, NASA faces an uncertain future regarding its Mars exploration programs. The Trump administration has proposed canceling an ambitious NASA program to transport samples of Martian soil to Earth – a project known as Mars Sample Return – calling it “unaffordable.”
The Perseverance rover was designed to be the first phase of the Mars Sample Return initiative. The car-sized robot has been drilling into the soil in various locations on the Martian surface, collecting samples of dirt and rocks in containers that are being left behind on the ground. The goal is that eventually a suite of robots will be sent to Mars to collect the samples and rocket them back to Earth.
But the future of that return is now in question with the recent attempt to cancel the program. Prior to Donald Trump taking office, NASA revealed that the Mars Sample Return budget had grown to as much as $11 billion and had requested ideas from the commercial space industry for ways to bring back the samples more economically. However, NASA ultimately didn’t decide on a new path forward before the Trump administration proposed cancellation.
“We believe there’s a better way to do this, a faster way to get these samples back,” Duffy said at the press conference, adding that he has been asked to spend less money at the agency.
“But I’ve told the team at NASA, if we don’t have have the resources for the right missions or the right people, I will go to the President, I’ll go to the Congress, I’ll ask for more money,” he added.
Senator Ted Cruz tried to salvage Mars Sample Return with the recent One Big Beautiful Bill Act. As chair of the Senate Commerce Committee, he included money for NASA in the bill to develop a new Mars telecommunications spacecraft that could be used for the Mars Sample Return program. However, the program still remains on shaky ground.
Nicky Fox, NASA’s associate administrator for the Science Mission Directorate, suggested that future missions of the agency’s Artemis program, which aims to send humans to the moon and eventually to Mars, could retrieve samples from the Perseverance rover in the future.
“We plan to send more missions to Mars in support of the Artemis program, which we’re really proud of, and it will open the door for humans to study and better understand the Red Planet,” Fox said. “And perhaps even one day bring back Martian samples home for us to actually study here on Earth.”
Ultimately Hurowitz hopes that the science community will continue to analyze the information Perseverance gathered, but he says the rover isn’t capable of determining if life truly formed these rock formations. The ideal scenario would be to get the sample Perseverance batched to an Earth laboratory where it can be studied in greater detail, he said.
“If we aren’t able to retrieve the samples, then we’ll just be left sort of pondering this question,” Hurowitz said. “Is the answer to that question sitting in a tube somewhere on Mars that we haven’t retrieved yet?”
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