All the normal matter in the Milky Way disc is denser than the dark matter that surrounds it.
Lisa RandallThere is real confusion about what it means to be right and wrong - the difference between what spiritual beliefs are and what science is.
Lisa RandallThe universe has its secrets. Extra dimensions of space might be one of them. If so, the universe has been hiding those dimensions, protecting them, keeping them coyly under wraps. From a casual glance, you would never suspect a thing.
Lisa Randall