Emily Sullivan

Updated 9:25 a.m. ET

American Frances H. Arnold has won half of the 2018 Nobel Prize in chemistry for her work in changing how chemists produce new enzymes, sharing the prize with another American, George Smith, and Sir Gregory Winter of the U.K. for research that has led to new pharmaceuticals and cancer treatments.

Updated 11:00 p.m. ET

Chocolate cupcake, creme, mango, tutti frutti, "blue" — sugary-sounding flavors familiar to teenage e-cigarette users are facing more crackdowns from the Food and Drug Administration.

Updated at 6:55 a.m. ET

This year's Nobel Prize in Physics has been "split" — with one half going to Arthur Ashkin, an American who won for his work with optical tweezers, while Gérard Mourou of France and Donna Strickland of Canada share the other half for work in generating high-intensity ultrashort optical pulses.

Together, their achievements mark groundbreaking achievements in the field of laser physics.

"This year's prize is about tools made from light," said the Royal Swedish Academy of Sciences in Stockholm in its announcement on Tuesday.

A dean at the Catholic University of America in Washington, D.C., has been suspended for a tweet that, according to university officials, "demonstrated a lack of sensitivity" to sexual assault survivors.

William Rainford, dean of the university's National Catholic School of Social Service, posted the tweet on his official university account last week, one day before Christine Blasey Ford and Brett Kavanaugh made back-to-back appearances before the Senate Judiciary Committee.

Updated at 5:00 a.m. ET on Wednesday

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