We know that some nasty things are happening to the lungs, but why does the smoke change color?
Although Everest had first been climbed in 1953, this was the first successful ascent to be made without supplemental oxygen.
Find out which fish will survive best in your little fishbowl!
When fluid blocks the passage of oxygen into the lungs, the resulting suffocation is known as drowning, whether or not the person is submerged in water.
Flying may just be more dangerous than you'd previously thought.
Why don't tooth-brushing and mouthwash really help? Why makes garlic so persistently stinky?
Ever wonder how a breathalyzer test actually works? Find out on this Moment of Science.
Do you know exactly where your heart is located? How about your bladder?
We generally say the heart is on the left side of the chest because about two-thirds of its mass is to the left of the sternum.
NASA is planning to send astronauts back to the moon fairly soon. However, there are a few kinks to work out, like what to do about moon dust.