Minkowski spacetime explained in 1 minute. | Cosmoknowledge

The Minkowski spacetime, named after the mathematician Hermann Minkowski, is a fundamental concept in astrophysics to understand Einstein theory of Spacial Relativity. The Minkowski formulation of space combine the spatial dimensions (x, y, z) with one dimension of time (t), into a single unified matrix. The rendering of this geometry is a flat pseudo-Riemannian manifold with a non-Euclidean contracted length in which distances appear relative depending strictly on the motion of the observer. A

When we talk about the enormity of the cosmos 💫, it’s easy to toss out big numbers – but far more difficult to wrap our minds around just how large, how far, and how numerous celestial bodies really are. Join us for a cosmic journey to see the size of our Milky Way galaxy: https://go.nasa.gov/2UxkHIN | NASA - National Aeronautics and Space Administration

This is how spaceships fly... | Spark

NASA is starting to figuring out what happens to our bodies if we live in space for long periods of time. | Gray Media Digital Content Center