Space
Cosmic census reveals 540 stars and planets in our neighbourhood
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Jonathan O’Callaghan
Contributor
Bio
is a freelance science journalist based in London. He specialises in stories on astronomy, astrophysics and space exploration, and was awarded the by the American Geophysical Union in 2021.
More from Jonathan O’Callaghan
Explore the latest news, articles and features
Space
We’ve measured the size of Venus’s planetary core for the first time
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Space
Sun-like stars spotted ejecting huge bursts of matter into space
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Life
Tanja Bosak interview: How Perseverance will hunt for life on Mars
Features
Space
Seven alien space rocks should pass through our solar system each year
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Space
Kilometre-high concrete towers on the moon could power a lunar base
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Space
Planet hotter than most stars spotted 25 light years away
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Space
Space junk foils astronomers observing oldest galaxy in the universe
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Space
NASA is about to land a helicopter on Mars that might glow in the dark
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Space
A dead star may have munched down on an icy exomoon
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Space
Astronomers spot amazing six-star system with three sets of eclipses
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Space
An Earth-like planet might orbit our closest single sun-like star
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