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Interstellar visitor ‘Oumuamua may be a comet, not an asteroid

Space

Interstellar visitor ‘Oumuamua may be a comet, not an asteroid

The path of the “interstellar asteroid” discovered last year can’t be explained by gravity alone - it was also pushed along by gas, so it might actually be a comet

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A cell infected with HIV

Health

We can tweak immune cells to be much better at wiping out HIV

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The New Horizons probe is awake and ready for its next flyby

Space

The New Horizons probe is awake and ready for its next flyby

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A day used to be less than 19 hours long 1.4 billion years ago

Space

A day used to be less than 19 hours long 1.4 billion years ago

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A T cell under attack from HIV

Health

We’re beginning to understand how some people can control HIV

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Pluto is not a planet – it's a billion comets squished together

Space

Pluto is not a planet – it's a billion comets squished together

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Why Saturn's inner moons look like ravioli, cigars and potatoes

Space

Why Saturn's inner moons look like ravioli, cigars and potatoes

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Weird backwards asteroid may be an interstellar interloper

Space

Weird backwards asteroid may be an interstellar interloper

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Falling mini-moons may have created Earth’s first continents

Space

Falling mini-moons may have created Earth’s first continents

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We’ve lost track of more than 900 near-Earth asteroids

Space

We’ve lost track of more than 900 near-Earth asteroids

More than 900 asteroids hurtling close to Earth were seen just once and then lost. Some may be kilometres across, and they could be just about anywhere

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Space

Probe saw plumes on Europa 20 years ago - we just didn't notice

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Space

The sun will die in a blaze of swirling gas in 5 billion years

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Space

Gamma rays from the sun are acting weird and nobody knows why

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Space

Diamond meteorites may come from a lost ancient planet

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