Engineers boost signals from fluorescent sensors

Engineers have found a way to dramatically improve the signal emitted by fluorescing nanosenors. The researchers showed they could implant sensors as deep as 5.5 centimeters in tissue and still get a strong signal. The advance allows the particles to b…

Where rivers jump course

Large floods will sometimes force a river to jump course and forge a new path across the landscape, in rare and catastrophic events known as river avulsions. Scientists have now published a global compilation of river avulsions. The study corroborates …