Explainer
How Do We Know How Bright a Supernova Was?
Type Ia supernovae are the rulers cosmology uses to measure the expanding universe, and they are usually called standard candles, as if they all shone equally brightly. They do not.…
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Type Ia supernovae are the rulers cosmology uses to measure the expanding universe, and they are usually called standard candles, as if they all shone equally brightly. They do not.…
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