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issonlive.app is offered free of charge for personal, non-commercial use. The information is provided as-is, refreshed periodically from public sources (NASA, Celestrak, The Space Devs). It is not authoritative — do not use it for mission-critical decisions.

If you spot an error in any of the published copy, write to [email protected].

You may link to any page on the site. You may not scrape the site at high volume — use the public APIs we list on the about page.

The companion Android app has its own terms inside the Play Store listing.

Not affiliated with NASA, ESA, JAXA, Roscosmos, or any other space agency.

Last updated: 2026-06-03.