NASA's Carbothermal Reduction Demonstration (CaRD) project has completed an important step toward using local resources to support human exploration on the moon. The CaRD team performed integrated ...

For decades, scientists have believed that complex life began when two very different microbes joined forces, eventually giving rise to plants, animals, and fungi. But one major puzzle remained: how ...

Oxygen therapy can help people with COPD breathe better and do daily activities with less difficulty. There are three types of oxygen therapy: compressed oxygen cylinders, liquid oxygen, and oxygen ...