NASA's faster mission picks are welcome, but speed isn't science

Is a mission picked in 19.5 months better than one picked in 35? NASA wants us to say yes, or at least not to ask. Asking is the right move, because a shorter calendar and a better mission are two different things.

NASA is shortening the calendar, and the rest is still a promise

In an open letter dated October 21, Nicky Fox, head of NASA's Science Mission Directorate, announced Competition Model 2.0, a reform directed by Administrator Jared Isaacman. Under the current two-step process, teams must submit thorough engineering and financial detail before finalists are chosen. The process can take almost three years. Under CM 2.0, first-round proposals focus on the science and a preliminary plan, with roughly half the material required today.

For Discovery, New Frontiers and Astro-Probes, NASA says the 35-month timeline falls to about 19.5. The smallest missions, such as Small Explorer and Earth Venture, move to a single step, with selection dropping from about 32 months to 19. Flagships keep their current procedures. Breaching cost or schedule thresholds, Fox wrote, will carry real consequences, up to cancellation.

The burden on proposers was real, and fixing it is the right call

Anyone who has watched research teams spend years and serious money on proposals that lose should welcome this. Fox herself conceded that the burden "has been too heavy for too long." Asking only for a science case, an implementation plan and a proof-of-concept mission design, as The News reports, before demanding full costings is sensible. It also gives teams without a big university or a major contractor behind them a fairer shot, which NASA claims will happen. We'd call that the strongest part of the reform, and it is mostly about fairness, not velocity.

But less up-front detail means more risk later

Here is our worry. Detailed engineering and cost work in the first round is tedious, but it is also how reviewers catch optimistic assumptions. Defer it, and the uncertainty doesn't disappear. It moves downstream, to the point where NASA has already chosen. NASA says selection will happen with "a stronger, more mature mission", yet that claim sits oddly beside a proposal that is half as thick. Maybe the second step does the heavy lifting. We think that deserves scrutiny, and it is a prediction, not a finding: the real test will be whether selected missions hold their budgets.

The threat of termination is NASA's answer. It is a blunt tool. Cancelling a mission after years of work is a cost in itself, paid by the team and by the science. A system that picks faster on thinner evidence and then punishes overruns risks creating exactly the cancellations it claims to deter.

Speed isn't the metric; funding is

The letter's promise of "more missions, more often" quietly assumes the money exists. The same letter admits the old process suffered from "unpredictability, and not enough funding." Shaving more than a year off selection does nothing if the budget line cannot absorb the extra missions. Likewise, steering work toward Goddard and JPL may cut internal competition and save money, as NASA argues, but it also concentrates decisions and, in our view, reduces the diversity of approaches that competition was designed to produce. And the push for commercial buses and subsystems is promising, though only where it actually helps on cost or technical grounds, as the letter itself says.

Note also that these are plans. NASA says it will roll changes out in stages and refine them with community input, and the numbers are targets, not outcomes.

Our verdict

Competition Model 2.0 is a good-faith fix to a real problem, and the lighter first round is overdue. But treat the 19.5-month figure as a promise, not a result. The metrics that matter come years from now: how many missions got funded, how many stayed on budget, and whether rigor was preserved. Until then, applaud the intent, and ask for that data.