What is the boundary between the atmosphere and space called?
Understand the Problem
The question is asking for the specific term used to refer to the boundary that separates the Earth's atmosphere from outer space.
Answer
Kármán line
The boundary between the Earth's atmosphere and outer space is called the Kármán line.
Answer for screen readers
The boundary between the Earth's atmosphere and outer space is called the Kármán line.
More Information
The Kármán line is commonly set at an altitude of 100 km (62 miles) above sea level, representing a practical limit where atmospheric influence on aircraft diminishes and space begins.
Tips
A common mistake is thinking the boundary is sharp and universally agreed upon, but it varies between 80 to 100 km in definition.
Sources
- Kármán line, boundary separating Earth's atmosphere and outer space - Britannica - britannica.com
- The Kármán Line: Where space begins - Astronomy Magazine - astronomy.com
- What is the Kármán line, and where is the edge of space? - National Geographic - nationalgeographic.com
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