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Space

Frozen asteroid

Scientists publish two new studies showing evidence of ice on object in asteroid belt.

Paleontology

Dinos molted for a new look

In one species, adolescents appear to have sprouted a new type of feathers as they matured.

Materials Science

Infection, kill thyself

Scientists devise wound dressings that trick bacteria into suicide.

Humans

Vision gets better with the right mind-set

Volunteers’ eyesight improved when they believed that they could see particularly well.

Health & Medicine

Body makes its own morphine

A study in mice suggests other mammals, including humans, can produce the painkiller in their bodies.