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Over the weekend, the Saharan dust moved to the Caribbean. By Monday, it had changed the tropical blue skies to a misty brown-gray color. On Tuesday, this tropical dust plume that increases the sunset, limits the blue sky and reduces the tropical threat continues its journey of 5,000 miles towards …

Scanning electron micrographs of corn plant cells. Wild type (left), and the TANGLED1 mutant (RIGHT). Credit: Carolyn Rasmussen / UCR When cells do not divide into adequate copies of themselves, living things do not grow as they should. For the first time, scientists now understand how a protein called TANGLED1 …

4:47 PM ET Adrian Wojnarowski Near Senior NBA Insider The Woj Pod Host Joined ESPN in 2017 Brian Windhorst Near ESPN Senior Writer Writer for ESPN.com NBA since 2010 Covered the Cleveland Cavs for seven years Author of two books. Denver Nuggets NBA center Nikola Jokic tested positive for the …

macOS Big Sur, the latest version of Apple’s operating system designed for Mac, brings back the classic startup buzzer that was removed from the MacBook lineup in 2016. The sound was removed from the 13-inch and 16-inch MacBook Pro models that launched in 2016, as those models started when they …

Figure 1: Event visualization of a top four quark candidate event, where two of the top quarks decompose leptonically (one with a resulting muon (red) and one with an electron (green)), and two top quarks hadronically decompose (green and yellow rectangles). The jets (jets labeled b) are shown as yellow …