Carbon comes in many different structures, most famously graphite and diamond. Other forms were predicted to exist at extremely high pressures, but now researchers have examined carbon under the highest pressure ever studied in the lab, and found that diamond sticks around much longer than expected.
One of the most abundant elements in the universe, carbon is the basis for all known life and much of the Earth itself. It takes on many different forms under different circumstances – the high pressures and temperatures deep inside the planet turn it into diamond. Other, more exotic structures we