This short article shows you how to subscribe to the SPACE-FRIDAY Astro Events calendar for free and add it to your calendar app. That way, you’ll never miss an important event in the fields of space exploration, science, and astronomy again. The article explains how to do this on Windows, iOS, and Android.
Is there an important astrology event missing from the calendar? No problem! Let us know via e-mail, the signal group, or BlueSky. We’ll be happy to add all relevant events.
Link to the Astro Events calendar, hosted by Proton Calendar:
https://calendar.proton.me/api/calendar/v1/url/V3VtLn7ag6Fwp89AWQDHVUIYtn75o0ezGRh9ogzgmxlsnq3iPJk2O3Zj59Ancu7TiPom9YKEjL0Hqxg9o64XrQ==/calendar.ics?CacheKey=2bFwTHf2kI9QrSXbHLMWQQ%3D%3D&PassphraseKey=TqBmIjPBQARJbGjSVlcr69qZEaBoMJaFjpF9Z2g3JlM%3D
Windows (with Thunderbird) – Tested with Windows 11 Pro
- Open your installed Thunderbird email client (If you haven’t used it yet, why not give it a try: https://www.thunderbird.net)
- Open the calendar in Thunderbird and click „New Calendar“ in the bottom-left corner
- Select „On the Web“
- Now copy the link to the Astro Events calendar and paste it into the „Address“ field.
- Enable the option: „The address does not require credentials“
- Click „Find Calendar“
- Once the Astro Events calendar has been found, all you need to do is confirm, and the calendar will be added to Thunderbird. Now you’ll never miss another Astro Event.
iOS (Apple Calendar via iOS Settings) – Tested with iOS 26
- Open the iOS Settings app
- Find the Calendar app
- Then go to „Calendar Accounts“
- Select „Add Account“
- Select „Add Other Account“
- Select „Calendar Subscription“
- Paste the link to our Astro Events calendar and tap Next
- Add the calendar by confirming
- Open the iOS Calendar app and enjoy our calendar
iOS (Apple Calendar App) – Tested with iOS 26
- Open the iOS Calendar app
- Tap the Calendar icon in the bottom-right corner
- Scroll down and select „Add“
- Select „Add Calendar Subscription“
- Paste the link to our Astro Events calendar and tap „Continue“
- Confirm to add the calendar
iOS (OneCalendar App) – Tested with iOS 26
- Download the OneCalendar app from the App Store: https://apps.apple.com/us/app/one-calendar/id1238379385
- Open the OneCalendar app (no subscription is required to use the calendar)
- Go to the menu and then select „Accounts“
- Choose the „WebCal“ option
- Paste the link to our Astro Events calendar and tap „Continue“
- Add the calendar
Android (F-Droid Store is required) – Tested with Android 15 and 16
Unfortunately, you can’t connect Android devices directly to CalDAV calendars. But there’s an app that integrates the CalDAV standard into Android. The app is available in the F-Droid Store (an alternative to the Google Play Store). The app is also available in the Google Play Store, but it isn’t free there. The open-source developers want to cover their costs for making the app available in the Google Play Store. However, the app is free via F-Droid, and you’ll need to install it to follow the instructions below.
- Open the F-Droid Store and install the ICSx5 app: https://f-droid.org/packages/at.bitfire.icsdroid/
- Open the ICSx5 app and tap the plus icon in the bottom right corner
- Select „Subscribe to URL“
- Paste the link to our Astro Events calendar
- No authentication or advanced settings are required.
- Tap „Subscribe“
- Now you can set a calendar color and alarm settings if you wish
- Tap the arrow in the top right corner to confirm the settings
- The calendar is now subscribed and added to your default Android calendar
- You can now open your calendar app and check whether the Astro Events calendar is active and the events are displayed.
It’s that easy to subscribe to our Astro Event Calendar. We hope you enjoy it.