Does outer space end – or go on forever?

Astronomers know a lot about what’s in outer space – and think it’s possible it never ends.

By: Jack Singal, University of Richmond, The Conversation

Outlets: The Conversation

Published: June 27, 2026

Words: 953

Last Updated: 3 weeks, 5 days ago

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By Jack Singal, University of Richmond

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

What is beyond outer space? – Siah, age 11, Fremont, California

Right above you is the sky – or as scientists would call it, the atmosphere. It extends about 20 miles (32 kilometers) above the Earth. Floating around the …

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