A Significant Threat

The newly released FY 2027 budget request for NASA proposes reducing the space agency's Science Mission Directorate from $7.25 billion to $3.9 billion — a devastating 47% cut to science funding coupled with a 23% reduction to NASA's overall budget. The proposal has drawn immediate and sharp criticism from space policy experts, who warn it could fundamentally reshape the space agency's capabilities.

Transparency and Accountability Questions

Experts note the budget request is remarkable not just for its magnitude, but for its departure from decades of precedent. Casey Dreier, chief of space policy at The Planetary Society, told Space.com: "This is the least transparent NASA budget request I've ever seen — and I've literally looked through every single one since 1960."

The proposal omits explicit identification of canceled missions, instead requiring comparisons with prior budgets to determine what has been cut. It also removes prior-year funding levels — a standard feature of NASA budgets for more than 60 years. Large, loosely defined funding pools like a $438 million "Mars Technology" line lack detail or cost breakdowns, making oversight difficult.

Mission Casualties and International Impact

If enacted, the cuts would cancel more than 40 science projects — roughly one-third of NASA's portfolio. Missions facing cancellation include:

• New Horizons (outer solar system exploration)
• OSIRIS-APEX (asteroid missions)
• Juno (Jupiter exploration)
• The Rosalind Franklin rover (ESA ExoMars collaboration)

The proposal would also strain critical international partnerships, potentially canceling at least a dozen joint missions and weakening the United States' reputation as a reliable space science collaborator.

The Role of Congress

This proposal remarkably echoes the FY 2026 budget, which Congress already rejected in a bipartisan vote. Dreier describes it as a "copy-paste budget" from last year, characterised as "sloppy and unprofessional," with errors including canceling missions that were already terminated in 2026.

Congress is expected to reject these cuts again. Over 100 House members recently signed a bipartisan letter calling for an increase to the NASA science budget. "Members of both parties understand that dismantling the U.S. space science program is a short-sighted, wasteful, strategic blunder," Dreier said.

Source: NASA Science Budget Threat – Space.com