TRMM satellite adds up Tropical Storm Manuel's amazing rainfall

Tropical Storm Manuel dropped very heavy rains that caused floods and mudslides and took lives on Mexico's Pacific coast. Manuel's rainfall was captured and tallied from NASA's Tropical Rainfall Measuring Mission satellite ...

A protein that can mean life or death for cells

Each cell in an organism has a sensor that measures the health of its "internal" environment. This "alarm" is found in the endoplasmic reticulum (ER), which is able to sense cellular stress and trigger either rescue responses ...

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