Sensitivity to light and red teeth: what is porphyria and why is it associated with vampires?
For centuries, stories about vampires have depicted pale creatures avoiding sunlight, appearing only at dusk, and mysteriously connected to blood.
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14,000 satellites in the sky problem: scientists propose covering them with a light-absorbing material
Currently, more than 14,000 artificial satellites orbit our planet, and this number is growing at an enormous rate. Although this ensures fast satellite internet and communication,…