Space: Type Ia supernovae are always EXACTLY equally bright —…

Question

Did you know? Type Ia supernovae are always EXACTLY equally bright — that's why they are called "standard candles". Astronomers measure cosmic distances by their brightness. In 1998 they showed the universe expands faster and faster — the discovery of "dark energy", for which the 2011 Nobel Prize was awarded.

Accepted Answer

Type Ia supernovae are always EXACTLY equally bright — that's why they are called "standard candles". Astronomers measure cosmic distances by their brightness. In 1998 they showed the universe expands faster and faster — the discovery of "dark energy", for which the 2011 Nobel Prize was awarded.

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