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Ask Science@lemmy.worldEnglish · 1 month ago

Is it possible that a new star could appear in the sky because a star really, really far away's light only just reached us?

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Is it possible that a new star could appear in the sky because a star really, really far away's light only just reached us?

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Ask Science@lemmy.worldEnglish · 1 month ago

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Has it already happened?

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wewbull@feddit.uk
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29 days ago
Hair grows over time and yesterday it was under 3 inches today it’s over 3 inches. A tiny change over a threshold.

There’s a threshold of visibility for stars. Yesterday it wasn’t visible to the eye. Today it’s barely visible.

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