Our current understanding of physics suggests that there are two main types of matter in the universe known as dark and baryonic matter. Dark matter is made up of material that scientists cannot ...

Dr. James O’Donoghue, a Japan-based planetary scientist, has made some incredible educational astronomy videos before. Including a video that showcases relative cosmic velocities to understand better ...

Dr. James O’Donoghue’s planet visualizations show how dynamic our solar system is, and may even make you rethink the way you imagine it. Visualizing our solar system is one of those third-eye treats ...

Peculiar velocities denote the motions of galaxies or matter beyond the uniform expansion of the Universe. While the Hubble–Lemaître law describes a smooth recession of galaxies with distance, real ...