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solid state physics

mathematical physics

A Child’s Puzzle Has Helped Unlock the Secrets of Magnetism

People have known about magnets since ancient times, but the physics of ferromagnetism remains a mystery. Now a familiar puzzle is getting physicists closer to the answer.

condensed matter physics

Paradoxical Crystal Baffles Physicists

At super-low temperatures, a crystal called samarium hexaboride behaves in an unexplained, imagination-stretching way.


In a Grain, a Glimpse of the Cosmos

When scientists traced a museum rock back to its origins, they uncovered mysteries about the early solar system.