科学与环境

What space travel teaches us about sleep and circadian rhythms

来源: Phys.org - latest science and technology news stories · 发布于

What space travel teaches us about sleep and circadian rhythms
来源: Phys.org - latest science and technology news stories

On Earth, most of us rarely have to think about the signals that keep our internal clocks aligned. The sun rises, daylight changes, darkness arrives and morning comes again.

On Earth, most of us rarely have to think about the signals that keep our internal clocks aligned. The sun rises, daylight changes, darkness arrives and morning comes again.

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Astronomers discover the lowest-mass double neutron star system to date
科学与环境

Astronomers discover the lowest-mass double neutron star system to date

Neutron stars, the extremely dense remains of massive stars that exploded at the end of their lives, are widely studied astrophysical objects. Some of these stars, known as pulsars, spin and send out beams of radio waves, making them appear to pulse as the beams sweep past Earth.

Phys.org - latest science and technology news stories ·

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科学与环境

Bats may have first evolved in Europe 65 million years ago

A huge genomic and fossil study suggests bats first evolved in Europe around 65 to 60 million years ago before spreading across the globe. The findings also indicate that flight and echolocation emerged near the beginning of bat evolution, potentially helping explain how bats bec

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