did you know?
a giant star (like the sun) can be squashed down to the size of one atom, to form a black hole.
millions of galaxies together form clusters and millions of these are strung together like a spider web. the area between the strands is completely empty, you would have to travel hundreds of miles to find one atom!
millions of galaxies together form clusters and millions of these are strung together like a spider web. the area between the strands is completely empty, you would have to travel hundreds of miles to find one atom!