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May 21, 2022 9:00 AM
Steelmaking is a major source of emissions. These companies are racing to fix it.
May 20, 2022 6:00 PM
Featured in diamonds
Nov 16, 2021
This diamond holds a never-before-seen mineral that can’t exist on Earth’s surface
The gem acted like a capsule, returning a sample from the planet's mantle.
Jul 20, 2021
Diamonds contain remnants of Earth’s ancient atmosphere
To us, they may be beautiful lumps of carbon—but to scientists, they’re 2.7-billion-year-old time capsules.
Aug 07, 2018
The secret origins of blue diamonds are finally coming to the surface
These gems are rare bits of Earth’s recycling.
Jul 20, 2018
Geologists think there could be a quadrillion tons of diamonds inside our planet
But we’ll never get them out of the ground.
Jun 11, 2018
Strange signals from space may be the result of spinning diamond dust
Lucy in the sky with nanodiamonds.
Apr 17, 2018
These diamonds are tiny, flawed, and may come from a long-lost planet
The early solar system was a wild, world-destroying place.
Mar 10, 2018
Why so many diamonds are making science headlines this week
They’re windows into the heart of the Earth.
Nov 28, 2017
What Meghan Markle’s engagement ring can teach us about Southern Africa’s ancient continental crust
More magma, more bling.
Aug 24, 2017
Uranus is probably full of giant diamonds
Scientists recreated ice planets' diamond rain.
