Mar 7, 2018

Jupiter is nothing like scientists expected

Heat radiating from cyclones on Jupiter's South Pole. Credit: NASA / SWRI / JPL / ASI / INAF / IAPS

New data from NASA's Juno spacecraft show patterns of cyclones, a core that behaves like a solid, and a jet stream that, unlike on Earth, extends deep into the planet.

Why it matters: Despite all of the beautiful images of Jupiter's Great Red Spot nestled among its iconic bands, little is known about what is happening in the planet's interior. The structure could hint at the formation of the solar system's largest and first planet — and of Earth's later origins.

"In almost every field, our ideas of what Jupiter was like are largely incorrect."
— Scott Bolton, Principal Investigator of NASA's Juno mission

Key findings from the four studies published in Nature today:

What's next: Two-thirds of Juno's mission remains. One outstanding question is how much oxygen there is in Jupiter in the form of water. "Understanding the distribution of oxygen in the early solar system, will help us understand the origin of oceans and therefore life itself," says Bolton.

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Coronavirus spreads to more countries, and U.S. ups its case count

Data: The Center for Systems Science and Engineering at Johns Hopkins, the CDC, and China's Health Ministry. Note: China numbers are for the mainland only and U.S. numbers include repatriated citizens.

The novel coronavirus continues to spread to more nations, and the U.S. reports a doubling of its confirmed cases to 34 — while noting those are mostly due to repatriated citizens, emphasizing there's no "community spread" yet in the United States.

The big picture: COVID-19 has now killed at least 2,250 people and infected almost 77,000 others, mostly in mainland China. New countries to announce infections recently include Israel, Lebanon and Iran.

Go deeperArrowUpdated 3 mins ago - Health

Repatriated American citizens have doubled coronavirus cases in U.S.

Face mask discarded outside the Diamond Princess cruise ship. Photo: Tomohiro Ohsumi/Getty Images

The official number of confirmed cases of the novel coronavirus in the U.S. just doubled — to 34 — but public health officials are pointing out that these are mostly people who've been repatriated.

Why it matters: As concerns grow about a global pandemic, officials from the Centers for Disease Control and Prevention want to make sure the message gets out: "We are not seeing community spread here in the United States," Nancy Messonnier says.

Bernie opens up massive lead among college students

Data: College Reaction; Note: ±3.4 margin of error; Chart: Axios Visuals

In the last two months, Bernie Sanders has surged 20 points among college students to become the group's clear 2020 favorite, according to a new College Reaction/Axios poll.

Why it matters: The numbers reflect the extent to which young Democratic voters are embracing socialism and rejecting moderate choices.