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HE 1327-2326, discovered in 2005 by Anna Frebel and collaborators, [2] was the star with the lowest known iron abundance until SMSS J031300.36−670839.3 was discovered. [5] The star is a member of Population II stars , with a solar-standardised iron to hydrogen index [Fe/H], or metallicity , of −5.4±0.2.
For more on USA TODAY’s Crossword Puzzles. USA TODAY’s Daily Crossword Puzzles. Sudoku & Crossword Puzzle Answers. This article originally appeared on USA TODAY: Crossword Blog & Answers for ...
Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. [32] Another crossword puzzle appeared on September 14, 1890, in the Italian magazine Il Secolo Illustrato della Domenica. It was designed by Giuseppe Airoldi and titled "Per passare il tempo" ("To pass the time"). Airoldi's ...
He is best known for the invention of the crossword puzzle in 1913, when he was a resident of Cedar Grove, New Jersey. [5] Wynne created the page of puzzles for the "Fun" section of the Sunday edition of the New York World. For the December 21, 1913, edition, he introduced a puzzle with a diamond shape and a hollow center, with the letters F-U ...
The moment when the first stars in the universe lit up was detected by scientists this week in a revolutionary finding through a faint radio signal. Signal detected from 'cosmic dawn,' the birth ...
The American Crossword Puzzle Tournament (ACPT) is a crossword-solving tournament held annually in February, March, or April. Founded in 1978 by Will Shortz , who still directs the tournament, it is the oldest and largest crossword tournament held in the United States ; the 2023 event set an attendance record with more than 750 competitors.
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This means that SDSS J0018−0939 most likely preserved the elemental abundance ratios produced by a first-generation very-massive star. [7] First generation stars are expected to self-regulate their growth by radiative feedback in the formation process, and to achieve masses typically tens of times that of the Sun. A fraction of stars might ...