Of particular interest to astronomers is the nebula's faint, Venn-diagram-like structure — two rings of ejected material shaped by the gravitational influence of the central stars. Scientists ...

My 7-year-old son goes to this extra math class on Sundays. This is how they graded his Venn diagram homework. I'm sort of mad because I think he is correct. Is there any chance that he is ...

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Previous studies have shown that a region of the brain called the preoptic area of the hypothalamus regulates mating, parental care and other instinctive behaviors. However, it remains unclear whether ...

This important study explored a molecular comparison of smooth muscle and neighboring fibroblast cells found in lung blood vessels afflicted by a disease called pulmonary arterial hypertension. In ...