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Two people stand on a railed walkway in front of an open white dome housing a large telescope, with hills and a dusk sky behind.

Finding the satellite is only the beginning

Three green torpedoes rest on display stands outside an exhibition hall beneath the wing of a grey aircraft, the middle one with a polished metal nose.

Who tells the torpedo where to go

Close-up photo of a browser address bar showing a green padlock icon next to the text https://.

The key was 4: who decides which websites your software trusts

A concrete road bridge on tall pillars standing over a dry, grassy and stony reservoir bed, with trees behind.

How a wet country runs short of water

Orbital view of rainforest cut through by a dense grid of pale cleared strips among dark green forest

How Brazil cut Amazon deforestation to a record low, and what...

Turquoise meltwater ponds spread across white Arctic sea ice, with two researchers standing on the ice

Can the world cool back down after 1.5°C?

Aerial view of large flat-roofed data centre buildings spread among roads and commercial sites under a partly cloudy sky.

Who pays for the grid that data centres need?

Aerial night view of a sprawling oil refinery glowing with orange and white lights under a deep blue sky

Why diesel remains scarce as crude exports recover

A long, red, thread-like virus particle with a curled end lying across blue cells.

A vaccine for one Ebola, tested against another

Aerial view of a large, low grey data-centre building surrounded by rows of cooling equipment, with fields and a lake under a sunset sky.

Who carries the debt behind the AI boom?

A missile leaves a warship's deck in a bright burst of flame and smoke, lighting up the ship's superstructure and wake at dusk

Cheap drones, scarce missiles: what it takes to keep an air...

The myth of nuclear zero: why the demand at the heart...

How WHO declares a global emergency — and why the declaration...

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