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Neuroscience

The debate over how long our brains keep making new nerve cells heats up

Adult humans don’t have newborn nerve cells in a memory-related part of the brain, a controversial paper suggests.

Physics

Give double-layer graphene a twist and it superconducts

When graphene layers are twisted to a “magic angle,” the material superconducts.

Health & Medicine

Newer drugs make hepatitis C-positive kidneys safe for transplant

People without hepatitis C did not contract the disease after receiving successful transplants of infected kidneys along with newer antiviral drugs.

Earth

Diamonds reveal sign of the deepest water known inside Earth

A rare form of ice crystal in the gems could have formed only at the crushing pressures found in the mantle.