Space
Interstellar visitor 鈥極umuamua may be a comet, not an asteroid
The path of the 鈥渋nterstellar asteroid鈥� discovered last year can鈥檛 be explained by gravity alone - it was also pushed along by gas, so it might actually be a comet
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Space
The New Horizons probe is awake and ready for its next flyby
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Environment
A day used to be less than 19 hours long 1.4 billion years ago
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Space
Pluto is not a planet 鈥� it’s a billion comets squished together
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Space
Why Saturn’s inner moons look like ravioli, cigars and potatoes
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Space
Weird backwards asteroid may be an interstellar interloper
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Space
Falling mini-moons may have created Earth鈥檚 first continents
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Space
We鈥檝e lost track of more than 900 near-Earth asteroids
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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
We used to think our sun was too small to produce a planetary nebula when it dies, but new models show it will indeed go out in a massive cloud of bright, hot gas
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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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Space
Young Saturn gave Jupiter the building blocks for its big moons
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Space
Life on toxic Venus? Acid-loving microbes could thrive in clouds
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