The stars in our night sky are vanishing at an alarming rate.
New data published in the journal Science —collected by citizen scientists around the world over more than a decade— shows the night sky is continuing to become less starry.
That's largely due to light pollution from urban settlements, street lighting, and cars.
Astrobiologist Hari Mogosanu says that a clear sky isn't just a nice-to-have thing.
She says too much light and satellites means that we can't see objects travelling towards the Earth.
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