Brussels terror attacks, fur-free Armani, rare color conservation

What to watch for today

Primaries in the western US states. Utah and Arizona hold Democratic and Republican primaries, and Idaho holds a Democratic caucus. Donald Trump is expected to win in Arizona but lose to Ted Cruz in Utah, where he is disliked by Mormon voters. Bernie Sanders will try to improve his slim odds of becoming the Democratic nominee.

Barack Obama goes to Buenos Aires. The US president will meet with his Argentine counterpart, Mauricio Macri, who is trying to pass a series of market reforms aimed at stabilizing the economy. The visit is touted as an opportunity to repair a somewhat tense relationship.

The Philippines launches its first satellite. The Diwata-I will be carried by a Orbital ATK Cygnus spacecraft to the International Space Station, and will eventually support disaster risk reduction and climate change studies. Separately, North America and Asia will witness a partial lunar eclipse, but don’t get too excited: It will only be visible as slight smudging of the moon.

While you were sleeping

Terror attacks killed dozens in Brussels. The Belgian capital’s airport and metro system were hit by three explosions, killing 31 people and wounding more than 200 in an attack claimed by the Islamic State militant group. One suspect from the airport bombing is still at large, and authorities throughout Europe and the United States announced heightened security measures.

Financial markets reacted—and so did US presidential candidates. Gold and the dollar gained but the British pound dropped, as did airport and leisure stocks. Meanwhile, Republican frontrunner Donald Trump called Brussels “a disaster city,” and fellow Republican Ted Cruz said the US should “patrol and secure” its “Muslim neighborhoods.”

Obama told Cuba he wants to bury the Cold War hatchet. The US president said he would try to end the decades-old trade embargo, and that the US would not interfere in the country’s destiny. Then he caught a baseball game with Raul Castro and did the wave.

Giorgio Armani pledged to stop using fur. The Italian fashion designer will eliminate animal pelts from his collections beginning this fall, following similar moves by British designer Stella McCartney and Germany’s Hugo Boss.

Russia sentenced a Ukrainian fighter pilot to 22 years in prison. Nadezhda Savchenko was convicted of “involvement” in the killing of two Russian journalists in eastern Ukraine. Her trial was criticized by the EU and Ukraine as a politically motivated farce.

Quartz obsession interlude

Cassie Weber on the promise of ocean wave power. “Inventors have created all sorts of strange and wonderful devices to coax energy out of the water; and investors have poured millions of pounds into solving one of the most perplexing problems in energy production.” Read more here.

Matters of debate

Silicon Valley’s confrontational management style started with Andy Grove. The late Intel executive’s motto was “Only the Paranoid Survive.”

Modern life is making kids unhappy. A focus on success leaves kids unable to cope with stress later in life.

The pantsuit is political. Its design allowed women to be taken seriously in male-dominated fields.

Surprising discoveries

Working out isn’t helping you lose weight. Weight loss might actually slow down metabolisms, leading our bodies to hoard calories.

Harvard is archiving the world’s rarest colors. Conservationists are cataloging colors like lapis lazuli and cadmium yellow.

A soccer player was busted for his Nutella addiction. Max Kruse was dropped from the German national team after a series of unfortunate events.

A Mexican governor wants to legalize opium. The move could reduce drug violence and empower his state’s farmers.

China is banning foreign-sounding apartment buildings. So long, “Beijing Yosemite.”

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