Every time I write about particle physics, I encounter a moment of uncertainty about a quantity that, at first glance, ought to be clear. How many kinds of elementary particles should I say there are?
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The Nasdaq Composite (^IXIC 0.80%), Nasdaq-100, and S&P 500 (^GSPC +0.00%) have soared ahead of SpaceX's debut. This nearly $1.8 trillion company combines two of Wall Street's hottest trends ...
Photos on social media are showing plumes of smoke rising from Edwards Air Force Base in California after a B-52 Stratofortress crashed earlier today. Officials at Edwards Air Force Base just ...
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