DiskSat: NASA and the U.S. Space Force test pizza‑shaped smallsat bus for unmatched power‑to‑weight

DiskSat is a flat, disk‑shaped smallsat bus that proponents say offers a power‑to‑weight ratio unmatched by traditional aluminum spacecraft. NASA and the U.S. Space Force are testing the design to leverage higher electrical power and surface area for more capable payloads and experiments in low Earth orbit.

Discovered 2025-12-18T19:21:54.283630-08:00 | 2025-12-18T19:21:54.283630-08:00

Briefing

What Hype is tracking

  • DiskSat's disk geometry promises higher electrical power, surface area and payload volume than conventional smallsat buses, which could enable larger sensors, high‑power experiments and new mission profiles — see the Aerospace Corporation's DiskSat flying on Rocket Lab's Electron for the USSF STP‑S30 rideshare.
  • The Space Force's concern about alternative, low‑observable satellite shapes shows how non‑traditional geometries can complicate space‑domain awareness and attribution; testing DiskSat feeds directly into those operational and defense considerations — see the Space Force's warning on low‑observable satellite shapes.

Reported By

aviaciondigital.com interestingengineering.com Ars Technica
Sources Tracked
3
First Seen
2025-12-18T19:21:54.283630-08:00
Latest Update
2025-12-20T22:28:29.874699-08:00
Coverage
Defense

Sources

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