SpaceNexus keeps the receipts on the space industry. Our own editions freeze on fixed dates, computed from our ledgers; outside events are listed with their source and the date we checked it. A launch date is only as firm as its source: “NET November” means no earlier than November, month only.
Slip Watch 2026-W39 (Sep 21 to Sep 27, 2026)
Frozen weekly edition: the week's real launch slips.
Starship Flight 14, the first planned orbital flight
Flight-day package (pre-flight, live page, debrief) and the Starship promise tracker update.
Source: Spaceflight Now (2026-09-21) · Space.com (2026-09-17); checked 2026-09-26.
Launch Slip Index, September 2026
Frozen monthly edition.
International Astronautical Congress (IAC 2026), Antalya, Turkiye
Q3 funding edition and "why space funding totals differ" in IAC week; the Q3 On-Time Launch Report freezes the same day.
Source: IAC 2026 (IAF) (2026-09-26); checked 2026-09-26.
On-Time Launch Report, Q3 2026
Frozen quarterly edition: punctuality by provider, vehicle and site.
Quarterly space funding edition, Q3 2026
Frozen quarterly funding edition with the reconciliation against other trackers (freezes automatically unless the editor publishes earlier).
Slip Watch 2026-W40 (Sep 28 to Oct 4, 2026)
Frozen weekly edition: the week's real launch slips.
Slip Watch 2026-W41 (Oct 5 to Oct 11, 2026)
Frozen weekly edition: the week's real launch slips.
JAXA MMX (Martian Moons eXploration) on H3 flight 10
"Mars autumn" package: MMX explainer and the 2026 Mars window, beside the Starship and Mars promise tracker.
Source: JAXA (2026-08-20); checked 2026-09-26.
The 2026 Earth to Mars transfer window
Mars window explainer; Starship and Mars promise tracker.
Source: NASA Glenn Research Center (NASA/TM-2010-216764) (2010-10-01); checked 2026-09-26.
Astrobotic Griffin Mission One (NASA Moon Base II) to the lunar south pole
Pre-flight in the Lunar Week and a Moon race tracker update.
Source: Voyager Technologies (2026-07-13) · Aerospace America (2026-09-15); checked 2026-09-26.
Launch Slip Index, October 2026
Frozen monthly edition.
SpaceVision 2026 (SEDS-USA), Space Center Houston
"Where the space jobs are" and the student careers hub.
Source: SEDS-USA (2026-09-26); checked 2026-09-26.
Launch Slip Index, November 2026
Frozen monthly edition.
Telesat Lightspeed: first two production satellites
Megaconstellation promise tracker update.
Source: Telesat (SEC 6-K) (2026-03-17); checked 2026-09-26.
Launch Slip Index, December 2026
Frozen monthly edition.
Vast Haven-1, the first commercial space station
Commercial stations promise tracker update.
Source: Aviation Week (2026-09-18); checked 2026-09-26.
The December 31 Cliff, 2026: final result
How many launches parked on Dec 31 actually flew.
On-Time Launch Report, Q4 2026
Frozen quarterly edition: punctuality by provider, vehicle and site.
Quarterly space funding edition, Q4 2026
Frozen quarterly funding edition with the reconciliation against other trackers (freezes automatically unless the editor publishes earlier).
Annual data edition computed from our ledgers.
Editions: Launch Ledger · funding · promise trackers · editorial standards.
Week in Space Data, every Friday.