The Story of the Universe

What’s inside

• Which observation provides the strongest evidence that the universe is expanding?
• What was the main significance of cosmic microwave background radiation in cosmology?
• Which process primarily produced hydrogen, helium, and small amounts of lithium during the early universe?
• What is the best current description of dark energy in the history of the universe?
• Match each major cosmic event with its best description.
• Match each observation or concept with the scientist or mission most closely associated with it.
• Match each structure with its characteristic role in cosmic evolution.
• Match each element-production process with the elements or conditions it best explains.