Beyond its aesthetic appeal, this perfectly circular Einstein ring has allowed researchers to "weigh" the dark matter at the ... of the company's Haven-1 space station at their Mojave test facility.

"Witches don't die; they burn inside out," said Don Juan Matus, a fictional Yaqui native in one of the best-known bestsellers of history, 'The Teaching of Don Juan.' However, since Carlos Castaneda ...