Cosmos
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Not all trees are equal in the fight against carbon
Europe’s replacement forests aren’t half as good at cooling the planet as the old broad-leafed variety.
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Maths confirms Pluto’s not a planet
A new formula seeks to define a planet. As Rick Lovett reports, 99% of the exoplanets found so far qualify, but Pluto does not.
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Did a missing trace element trigger mass extinctions?
Selenium shortages coincide with species collapse.
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Dark matter uncovered
Most of the matter in the Universe consists of stuff we can’t see. It is dubbed “dark matter” and we know it must be out there. Without dark matter rapidly spinning […]
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A new way of defining temperature?
Atoms wriggle – they can’t help themselves. And the warmer they are, the faster they writhe. By using lasers to measure how fast atoms of the element caesium zip around […]
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Invisibility becomes reality?
As far back as Plato people imagined the power of invisibility. Now the fantasy is being made real.
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What does an electron cloud really look like?
A new microscopy technique allows us to see the glue that holds molecules together.
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Ghost traps: the hunt for dark matter
We have no idea what most of the matter in the Universe is made of. Are we finally closing in on dark matter?
