How to dim the consequences of global light pollution

Our ancestors could look up and see the Milky Way—our galaxy—as a large band of white light stretching across the sky. Because of light pollution, that's no longer the case. One study estimated that 60% of Europeans and ...

Bright galaxies put dark matter to the test

For the past year and a half, the James Webb Space Telescope has delivered astonishing images of distant galaxies formed not long after the Big Bang, giving scientists their first glimpses of the infant universe. Now, a group ...

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