The Upside Down The current model scientists use to explain the universe around us is made up of three components: regular matter, cold dark matter (CDM), and the cosmological constant, or lambda, a coefficient first introduced by Albert Einstein in 1917 that’s related to dark energy. This standard model of cosmology has served as a way […]
“Hearst Magazines and Yahoo may earn commission or revenue on some items through these links.” Understanding the Big Bang and its aftermath—especially the ideas of universal expansion and acceleration—is one of the biggest cosmological challenges that exists. The leading explanation, known as Lambda-CDM, relies on the yet-to-be-directly-observed concepts of dark matter and dark energy, and […]