“Dark matter is a mysterious substance that has gravity but does not interact with light in any known way.” — Neil deGrasse Tyson Copy Share Image
“Ordinary matter is what we are all made of. It has gravity and interacts with light. Dark matter is a mysterious substance… — Neil deGrasse Tyson Copy Share Image
“Mind and matter are mysterious and, when they come together, bounteous.” — Ali Smith Copy Share Image
