lucid dreamers eye movements communicate researchers

People can send signals from inside a dream

Lucid dreamers know they are dreaming while the dream is still happening. In experiments, they have moved their eyes in agreed patterns to send signals to researchers while asleep. This lets researchers mark events inside a dream as they happen.

A tiny excess of matter was enough to build the universe we see

≈1 in 100 million

The early universe contained almost equal amounts of matter and antimatter. When the two destroyed each other, only a tiny excess of matter remained—about one surviving particle for every 100 million original matter particles. That small leftover became the matter around us today.

Animals depend on microbes for vitamin B12

Vitamin B12 is produced naturally by certain bacteria and archaea, not by animals or plants. Animals obtain it through their diets or relationships with microorganisms. Humans get B12 mainly from animal-derived foods, fortified products or supplements. A vitamin essential to human health ultimately originates in microbial metabolism.

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lucid dreamers eye movements communicate researchers

People can send signals from inside a dream

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