Last updated: October 19, 2026.
Information only
Space Osmosis publishes general information about space and astronomy. It isn't travel, safety, scientific or professional advice. Calendars and scores describe averages and calculations, not tonight's sky, so check the weather and the park's own alerts before you travel.
Accuracy
We work from public data and show our method, but we can't promise the site is free of errors or that it's complete or current. The site is provided as is, without warranties of any kind. To the fullest extent the law allows, we aren't liable for any loss that comes from using it.
Data and photo licences
Datasets and photos keep the licences of their original sources, which are listed on Sources and credits. If you reuse GCAT data through our pages, credit GCAT as its licence requires.
Our content
The text, charts, calculations and design of this site belong to Space Osmosis. You may quote short extracts and share charts with a visible link back to the page they came from. Please ask before copying whole pages or reusing the site's code, layout or logo.
Links to other sites
We link to outside sites for reference. We don't control them and aren't responsible for what they say or do.
Trademarks
NASA, ESA, SpaceX, Starlink and other names belong to their owners. Space Osmosis isn't affiliated with them and they haven't endorsed it.
Changes
We may change these terms. The date at the top shows the latest version, and continued use means you accept the change.
Questions: contact@spaceosmosis.com. See also the privacy policy.