---
title: "How do scientists know the universe is expanding?"  
description: "How do scientists know the universe is expanding?"  
author: "simron shukla"  
published: 2018-03-07  
canonical: https://answers.mindstick.com/qa/37152/how-do-scientists-know-the-universe-is-expanding  
category: "galaxy"  
tags: ["galaxies"]  
reading_time: 1 minute  

---

# How do scientists know the universe is expanding?

How do scientists know the universe is expanding?

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Original Source: https://answers.mindstick.com/qa/37152/how-do-scientists-know-the-universe-is-expanding

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