Jul 17, 2017

The sun's surface isn't as tranquil as scientists thought

NASA / SDO

Every 11 years, the sun's magnetic poles flip, in the process forming sunspots and violent eruptions from the surface that can have an impact on Earth. Two new studies provide insights into the cycle, the NY Times notes.

  • One study, published in Science, found that the cycle is similar to those of other solar-type stars. The authors looked at 25 similar stars and found that "a star's activity cycle depended on two factors: luminosity and rotation."
  • Another study, published in Science Advances, found that sun's seemingly quiet outer layer, known as the corona, is active. "At solar minimum, the quiet corona measures around 1.4 million degrees Celsius. But at solar maximum it jumps to around 1.8 million degrees."
  • Why it matters: The sun's magnetic activity can affect us on earth, from interfering with satellites to hampering the power grid, and the more scientists know the better they'll be able to predict solar activity.

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Joe Biden places second in Nevada caucuses, ahead of Pete Buttigieg

Democratic presidential candidate and former Vice President Joe Biden a Nevada Caucus watch party in Las Vegas on Saturday. Photo: Ronda Churchill/AFP via Getty Images

Former Vice President Joe Biden secured second place in the Nevada Democratic caucuses with former Southbend Mayor Pete Buttigieg third, according to NBC News projections Sunday.

By the numbers: With almost 88% of precincts reporting, Biden has 20.9% of the Nevada votes and Buttigieg has 13.6%.

Flashback: Bernie Sanders wins Nevada caucuses

Editor's note: This is a developing news story. Please check back for updates.

Sanders reveals free childcare plan for preschoolers

Democratic presidential candidate Sen. Bernie Sanders speaks during a campaign rally on Saturday in El Paso, Texas. Photo: Cengiz Yar/Getty Images

Democratic presidential candidate Sen. Bernie Sanders announced on CBS' "60 Minutes" Sunday a new plan to guarantee free child care and pre-kindergarten to all American children from infancy to age four.

Details: In the wide-ranging interview, Sanders told Anderson Cooper he planned to pay for universal childcare with a wealth tax. "It's taxes on billionaires," he said.

Exclusive: Trump's "Deep State" hit list

Illustration: Aïda Amer/Axios. Photos: WPA Pool/Getty Pool, Drew Angerer/Getty Staff

The Trump White House and its allies, over the past 18 months, assembled detailed lists of disloyal government officials to oust — and trusted pro-Trump people to replace them — according to more than a dozen sources familiar with the effort who spoke to Axios.

Driving the news: By the time President Trump instructed his 29-year-old former body man and new head of presidential personnel to rid his government of anti-Trump officials, he'd gathered reams of material to support his suspicions.