Word: oneness
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...we’re in middle age now, this star was born when the universe was basically a toddler,” said Evan N. Kirby, a researcher at California Institute of Technology and one of the authors...
Astronomers can determine how long ago a star was created by measuring its metal content because stars that contain more elements beyond hydrogen and helium are newer than “metal-poor” stars like the one found in the Sculptor Galaxy...
Using the Keck Telescope in Hawaii, Kirby set out to find evidence of metal-poor stars in dwarf galaxies by scanning the skies using medium-resolution spectroscopy, which allowed him to study many stars but didn’t yield a detail-rich characterization of any one star...
...pointed the spectrometer at Sculptor and other galaxies, and out of about 400 stars in the sky I noticed this one,” he said...
...explained that gathering data for the star took eight to ten hours spanning two or three nights. A typical resolution, she added, usually takes one to two hours...