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immune system

Planet Neptune in the Starry Sky of Solar System in Space with image elements furnished by NASA.

Space

A passing star shifting Neptune’s orbit could wreck the solar system

If a star flying past our solar system moved Neptune's orbit by just 0.1 per cent, it could eventually cause the other planets to smash into one another or get thrown out of the solar system entirely

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Methotrexate tablets

Health

Coming off methotrexate doubles antibody levels after covid-19 vaccine

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2DEWC6E Beijing, China. 2nd Dec, 2020. This image taken from video animation at Beijing Aerospace Control Center (BACC) shows Chang'e-5 spacecraft landing on the moon. China's Chang'e-5 spacecraft successfully landed on the near side of the moon late Tuesday and sent back images, the China National Space Administration (CNSA) announced. Credit: Jin Liwang/Xinhua/Alamy Live News

Space

Moon rocks collected by the Chang’e 5 mission have water in them

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Sun Solar Flare Particles coronal mass ejections for background computer desktop screen display; Shutterstock ID 752393257; purchase_order: -; job: -; client: -; other: -

Space

Why the next big solar storm might hit Earth without warning

Features

the spectacular conjunction of the moon,jupiter and saturn 3d rendering illustration; Shutterstock ID 1875982732; purchase_order: -; job: -; client: -; other: -

Space

Pairs of giant planets may make their star systems ultra-habitable

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A light micrograph of plaques in someone with lupus

Health

Discovery of a genetic cause of lupus could lead to new treatments

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This high resolution image of the icy crust of Europa, one of Jupiter's moons, reveals a surface criss-crossed by multiple sets of ridges and fractures

Space

We now know how the mysterious ridges covering Europa’s surface formed

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Magnetosphere

Physics

Earth’s magnetosphere replicated in miniature using lasers and magnets

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Nerve demyelination. Coloured transmission electron micrograph (TEM) of a section through a Schwann cell and a nerve fibre, showing the early collapse of its myelin sheath. Myelin (red) is an insulating fatty layer that surrounds the nerve fibre (axon, orange), increasing the speed at which nerve impulses travel. It is formed when a Schwann cell (green) wraps around the fibre, depositing layers of myelin between each coil. Demyelination occurs in nerve disorders such as multiple sclerosis (MS). Patches (lesions) of myelin sheath are destroyed and nerve function is impaired. Magnification: x3800 when printed 10 centimetres wide.

Health

MS reversed by transplanted immune cells that fight Epstein-Barr virus

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Main ? Voyager 2 view of Neptune, captured in August 1989. Credit: NASA/JPL-Caltech/Kevin M. Gill

Space

Neptune has been slowly cooling for 15 years when it should be warming

Nearly two decades of observations have shown that Neptune's southern hemisphere has been slowly cooling down when it should be heating up, and we don’t know why

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Health

Pancreatic cancer treated in mice by loading tumour cells with tetanus

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Health

We seem to find people with a strong immune system more attractive

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Space

Mars may have been habitable millions of years later than we thought

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Space

We may now know why Uranus and Neptune are different shades of blue

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