A popular crusade is in progress against the conviction of persons accused of capital crimes on what is loosely termed "merely circumstantial evidence." Several such convictions in cases that have ...
Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. The discovery, using NASA’s Chandra X-ray Observatory and other telescopes, gives ...
https://doi.org/10.4169/amer.math.monthly.118.03.229 • https://www.jstor.org/stable/10.4169/amer.math.monthly.118.03.229 Copy URL Abstract We give a natural and ...
Even after decades of searching, scientists have never seen a particle of dark matter. Evidence for the substance’s existence is close to incontrovertible, but no one yet knows what it is made of. For ...
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