Oxygen is a colourless, odourless gas that forms about 21% of the Earth's atmosphere and is essential for plant and human life. Tissue oxygenation is dependent upon inspired oxygen, the concentration ...

WASHINGTON — The Federal Railroad Administration on Friday ordered rail tank-car owners to replace defective valves never approved for installation on thousands of tank cars, causing oil to spill from ...

SPRINGFIELD, Mo. (KY3) - Firefighters with the Battlefield Fire Protection District led a successful effort that could save lives. And now, Mo HealthNet says that one piece of safety equipment for ...

May 8 (UPI) --Boeing's Starliner crew flight test has been pushed back another week as United Launch Alliance plans to replace a part of the spacecraft. The test launch is now set for 6:16 p.m. EDT ...