Cosmology, Exotic Objects, Milky Way Rapidly spinning stars explain dark matter signal from galactic center
Science In the protoplanetary disk, pebbles turn from rocks to asteroids to planetesimals. How do you get pebbles?
Science Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn’t have one, my understanding crumbled. What exactly causes magnetic fields in planets?
