How Can Astronauts Tell How Fast They’re Going? 

Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out.Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out. Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out.  Science, Science / Physics and Math, Science / Space, Dot Physics Science Latest