Astronomers have turned to some of the oldest stars in our Galaxy to tackle one of cosmology's most stubborn puzzles and their answer might surprise you. By analysing precise age data for more than 200,000 Milky Way stars, researchers have placed the age of the universe at around 13.6 billion years. It's a deceptively simple idea that the universe cannot be younger than the stars it contains. What they found doesn't just give us a number, it adds a compelling new dimension to a decades long argument that has divided the scientific world.
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