Room-temperature superconductor study retracted by Nature

A study published in March claiming the discovery of a superconductor that works at room temperature—a scientific holy grail—has been retracted by the high-profile journal Nature at the request of most of its authors.

The hardy wild grass that could save our bread

An obscure species of wild grass contains "blockbuster" disease resistance that can be cross bred into wheat to give immunity against one of the deadliest crop pathogens.

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