Mondo Knows Facts

Galileo is the civilian run navigation system

The European constellation was built for civil authorities rather than a military, and it adds a search and rescue reply Galileo reached initial services in 2016 and full operational capability in 2020, with about 24 satellites in medium Earth orbit. Its signals are compatible with GPS, so a receiver can use both constellations and get a better fix in cities. The search and rescue service sends a confirmation back to a distress beacon, telling survivors that help has been alerted. It sits in Mondo's technology collection, one of 200 facts that each trace back to the reference below.

Where this comes from

European Space Agency

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Tags: satellite-navigation, galileo, europe

Galileo is the civilian run navigation system: the short answers

Where does this come from, and can I check it?
The European constellation was built for civil authorities rather than a military, and it adds a search and rescue reply. The figure is taken from European Space Agency, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?
Yes. It sits on the Technology shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.