Quote by William J. Broad
The crux is that the vast majority of the mass of the universe seems to be missing.
Summary
This quote highlights a puzzling observation in astrophysics – the missing mass in the universe. Despite our understanding of matter and its properties, scientists have determined that a significant portion of the universe's mass is unaccounted for. This lack of mass is often referred to as dark matter, whicobservatis an invisible and unidentified substance believed to interact only through gravity. The quote implies that our current knowledge is insufficient to explain the full extent of the universe's composition, leading to ongoing scientific exploration and hypothesis regarding the existence and nature of dark matter.