NASA's Mars Sample Return mission is facing some tough scrutiny. 

The Senate Appropriations Committee offered their recommendations on the spending bill for fiscal year 2024, and they do not provide all NASA was hoping for. The Commerce, Justice and Science (CJS) spending bill, which allocates funds for NASA and a few other government agencies, was reviewed by the committee in a 28 to 1 vote on July 13. The bill secures funding for NASA's ongoing Artemis program to the moon and other exploration initiatives, but cuts the space agency's budget for planetary science by over half a billion dollars. 

In opening remarks, Senator Patty Murray stated the bill was, "written under some very difficult limitations," adding her stance that "those caps limit our ability to invest in our country's future."

First on the Committee's chopping block seems to be NASA's ambitious Mars Sample Return mission (MSR), a plan to retrieve Martian geological specimens collected by the Perseverance rover. The report raises concerns with the mission's continually delayed timeline and increasing costs. A recent Ars Technica report details ballooning internal cost projections for MSR at NASA, nearly doubling the mission's overall estimate to between $8 and $9 billion. 

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