How did Earth’s inner core freeze solid?
Rost9/Shutterstock
A high concentration of carbon within Earth’s inner core could explain a long-standing mystery about how the deepest part of our planet froze solid – a process that kick-started the magnetic field protecting life on the surface.
Earth’s inner core presents a paradox for geophysicists: it first formed as a massive liquid ball of mostly iron, then began to solidify within the last billion years. In order for that freezing process to start in a pure iron object, it would have had to cool by at least 700 kelvin in…
By JD Stokely. In October 2025, eighteen artists gathered in Maine for a weekend of…
IMAGN IMAGES via Reuters ConnectIMAGN IMAGES via Reuters Connect Vegas is surprising a lot of…
Prediction market regulators should consider a measured approach to insider trading enforcement as opposed to…
Josh O'Connor stars as Daniel, a cyber-security boffin who works for a powerful organisation called…
This was published in English (and Polish) in 1986 under the title One Human Minute:…
If you’re officially counting down (or already clocked out for) summer, you’re not alone. Whether…