NASA's 368-Page Guide Sets the Standard for Space Repair Work

Contributors include NASA centers at Ames, Glenn, Marshall, Kennedy, and Johnson, plus international developers who meet the entry bar.

How strict is the entry bar?

Strict, at least on paper. Hardware must physically exist — a ground prototype or an in-flight demonstration. Nothing else counts.

"We get people who will send their PowerPoint presentation of their technology idea," Arney said. "There's no real indication they've done any work on the technology itself yet."

Those concepts wait until a following year's review. Slide decks don't fly here. That filter matters, because a document like this is only as good as its weakest entry — one inflated claim and the whole baseline gets fuzzy.

Team member John Mulvaney describes the effort as collaborative by design. "We like to refer to it as kind of a crowdsource document," he says. Each year brings more interviews with industry partners to check accuracy and completeness.

Why does orbital servicing matter?

NASA's argument is that ISAM capabilities enable missions traditional single-launch spacecraft simply cannot pull off. The document points to three drivers:

• Telescopes larger than any rocket fairing could contain
• National security satellites that stay useful because they're mobile and resilient
• Commercial systems that upgrade to newer technology on orbit instead of being replaced whole

The agency also frames the guide as shared vocabulary for emerging ecosystems, from lunar infrastructure to on-orbit manufacturing.

Here's the caveat that follows every promise: the document records capability, not success. A prototype in a lab, or even a demo in flight, is not a proven business. Whether on-orbit upgrades beat simply launching new satellites depends on costs the State of Play doesn't settle.

What does this change for the reader?

If you build spacecraft or design missions, you now have a verified, current baseline — who has real hardware, in which of 11 areas, at which facilities, as of the 2026 edition. If you're an investor or analyst, it's a reality check: if a company isn't in these pages, its technology may still live entirely in PowerPoint.

And if you're just watching the industry, the signal is simpler. The orbital repair shop is being built now, piece by piece — with hardware you can touch, and a 368-page paper trail to prove it.

The document's cover features astronaut F. Story Musgrave, anchored on the Space Shuttle Endeavour's robotic arm during Hubble's first servicing mission in 1993. A fitting mascot: proof that fixing things in orbit isn't a new idea, just one finally getting an encyclopedia.