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Subscribe to the Space Calendar
A free, auto-updating calendar feed of upcoming space. Subscribe once and new events roll into your calendar automatically — works with every calendar app.
Subscribe
webcal://countdownboxes.app/api/calendar/space.ics
How to subscribe
- Tap your calendar button above — Apple and Outlook desktop open the webcal link directly.
- Google and Outlook.com open in a new tab — confirm “Add calendar” there.
- New events appear automatically; you never re-subscribe.
On iOS, webcal links open Calendar's subscription sheet. If nothing happens, copy the feed URL above and add it via Settings > Calendar > Accounts > Add Subscribed Calendar.
Coming up in this feed
- H3-24 | Martian Moon eXplorer (MMX)Oct 19, 2026
- Orionids Meteor Shower 2026Oct 21, 2026
- Falcon 9 Block 5 | Dragon CRS-2 SpX-35Oct 31, 2026
- Falcon 9 Block 5 | Bandwagon 5 (Dedicated Mid-Inclination Rideshare)Oct 31, 2026
- Ariane 64 Block 2 | Amazon Leo (LE-04)Oct 31, 2026
- SSLV | AayulSAT-1A & othersOct 31, 2026
- Vulcan VC6L | Amazon Leo (LV-01)Oct 31, 2026
- Long March 12A | Flight 2Oct 31, 2026
How it works
Subscribing is not a one-time import: your calendar app keeps the feed connected and refreshes it periodically (roughly every 12 hours), so newly announced space show up on their own. Each entry links back to its live countdown page.