image of Earth

The Kármán line: where does space begin?

The Kármán Line is a boundary 100 kilometers above mean sea level that borders the Earth’s atmosphere and the beginning of space. However, defining exactly where the gap begins can be quite tricky and depends on who you ask. This is due to the fact earth’s atmosphere does not end abruptly but gets thinner and thinner at higher altitudes, meaning there is no definite upper limit.

International law states that “outer space shall be free to exploration and use by all” according to NOAA (opens in a new tab). But due to a variety of definitions of where space actually begins and no definitive law that confirms the true boundary. The door “where space begins” has been left wide open, inviting a host of different interpretations.

#Kármán #line #space

Leave a Comment

Your email address will not be published. Required fields are marked *