A foreign object is something in the body that doesn’t belong there. It may be accidentally or intentionally swallowed or lodged in the ears, nose, eyes, skin, and airways. Many types of foreign ...
Astronomers have observed the intriguing characteristics of an unusual type of object in the asteroid belt between Mars and Jupiter: two asteroids orbiting each other and exhibiting comet-like ...
Three new types of object have been discovered in our galaxy: huge gamma-ray clouds, dense X-ray engines almost hidden in cocoons of dust, and bubbles blown by the wind from giant stars. All ...
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