Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out. https://www.wired.com/story/how-can-astronauts-tell-how-fast-theyre-going/?utm_brand=wired-science&utm_campaign=aud-dev&utm_medium=social&utm_social-type=owned&utm_source=voante-science
