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Archive for the ‘space’ category: Page 710

May 20, 2019

Geologists Just Discovered a Source of Volcanoes Deeper Than Ever Before

Posted by in categories: materials, space

Researchers have pinpointed a previously unknown source of volcanoes in the extreme depths of Earth — in the transition zone between the upper and lower mantle.

Until now, we thought we had a handle on the ways in which volcanoes form, welling up from the molten regions in the upper mantle beneath our planet’s crust, but the new discovery takes things much farther down.

In the Bermuda islands, which sit atop an extinct volcanic seamount, geologists have found the first direct evidence that material from the transition zone, between 400 and 650 kilometres (250 and 400 miles) below Earth’s surface, can bubble up and be spewed out of volcanoes.

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May 20, 2019

NASA’s Juno Finds Changes in Jupiter’s Magnetic Field

Posted by in category: space

The discovery will help scientists further understand Jupiter’s interior structure — including atmospheric dynamics — as well as changes in Earth’s magnetic field. A paper on the discovery was published today in the journal Nature Astronomy.

“Secularvariation has been on the wish list of planetary scientists for decades,” said Scott Bolton, Juno principal investigator from the Southwest ResearchInstitute in San Antonio. “This discovery could only take place due toJuno’s extremely accurate science instruments and the unique nature of Juno’sorbit, which carries it low over the planet as it travels from pole to pole.”

Characterizing the magnetic field of a planetrequires close-up measurements. Juno scientists compared data from NASA’s pastmissions to Jupiter (Pioneer 10 and 11, Voyager 1 and Ulysses) to a new model ofJupiter’s magnetic field (called JRM09). The new model was based on datacollected during Juno’s first eight science passes of Jupiter using itsmagnetometer, an instrument capable of generating a detailed three-dimensionalmap of the magnetic field.

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May 20, 2019

Juno finds changes in Jupiter’s magnetic field

Posted by in category: space

NASA’s Juno mission to Jupiter made the first definitive detection beyond our world of an internal magnetic field that changes over time, a phenomenon called secular variation. Juno determined the gas giant’s secular variation is most likely driven by the planet’s deep atmospheric winds.

The discovery will help scientists further understand Jupiter’s interior structure—including atmospheric dynamics—as well as changes in Earth’s . A paper on the discovery was published today in the journal Nature Astronomy.

“Secular variation has been on the wish list of planetary scientists for decades,” said Scott Bolton, Juno principal investigator from the Southwest Research Institute in San Antonio. “This discovery could only take place due to Juno’s extremely accurate science instruments and the unique nature of Juno’s orbit, which carries it low over the planet as it travels from pole to pole.”

Continue reading “Juno finds changes in Jupiter’s magnetic field” »

May 20, 2019

Hyperspectral camera captures wealth of data in an instant

Posted by in categories: bioengineering, drones, space

Standard snapshots from space don’t quite show Earth in all its glory. There’s so much more to see.

To reveal details impossible to observe with the naked eye, Rice University engineers are building a portable spectrometer that can be mounted on a small satellite, flown on an airplane or a drone or someday even held in the hand.

Bioengineer Tomasz Tkaczyk and his colleagues at Rice’s Brown School of Engineering and Wiess School of Natural Sciences have published the first results from a NASA-funded project to develop a small, sophisticated spectrometer with unusual versatility. Their paper appears in Optics Express.

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May 20, 2019

Next-Gen Megascope for Astronomy Taking Shape on Chilean Mountaintop

Posted by in category: space

The Giant Magellan Telescope should be observing the heavens by 2026.

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May 20, 2019

Biology and Physics on Station Today Promote Moon Mission Success in 2024

Posted by in categories: biotech/medical, food, habitats, space

The Expedition 59 crew is exploring space’s long-term impacts on biology and physics today helping astronauts go to the Moon in 2024. #Moon2024


The six residents aboard the International Space Station kicked off the workweek today exploring microgravity’s long-term impacts on biology and physics. The Expedition 59 crew is also ramping up for a fourth spacewalk at the orbital lab this year.

NASA is planning to send men and women to the Moon in 2024 and life science on the station will help flight surgeons keep lunar astronauts healthy. The space physics research will also provide critical insights to engineers designing future spacecraft and habitats for exploration missions.

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May 20, 2019

NASA’s full Artemis plan revealed: 37 launches and a lunar outpost

Posted by in category: space

Still missing? The total cost. And that’s probably by design.

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May 20, 2019

Achieving Bezos’ bold vision of space settlement requires bold policy direction

Posted by in categories: economics, habitats, policy, space

Those who watched the full 51-minute version of Jeff Bezos’ May 9 Blue Moon announcement were treated to a tutorial on the work of Dr. Gerard K. O’Neill. In the 1970s Dr. O’Neill popularized the idea of space colonies that rotate in orbit allowing tens of thousands of inhabitants to live comfortable lives in Earth-like habitats. Bezos even commissioned updated renderings to excite the audience’s imagination.

Bezos articulated, as he has on many occasions that human civilization should and must expand out into the space to live and work in permanent space settlements. Doing so will allow the best planet in the Solar System, the Earth, to become a protected treasure in the vast harshness of space.

He understands that by creating the infrastructure to accelerate economic development in space his vision of space settlement will more rapidly come to fruition. But Bezos is sober about his space colony ambitions. He calls it a multigenerational endeavor. And so it may be.

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May 20, 2019

Inside Swamp Works, the NASA Lab Learning to Mine the Moon

Posted by in category: space

NASA’s Swamp Works may be humans’ best hope for figuring out how to live and work on other planets.

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May 19, 2019

Billion-Dollar Gamble: How A ‘Singular Hero’ Helped Start A New Field In Physics

Posted by in categories: physics, space

This unlikely story begins back in the 1960s, when Isaacson was a doctoral student and got interested in one of Albert Einstein’s predictions.

In 1916, Einstein theorized that any time two massive objects crash together, shock waves should move through the very fabric of the universe. These gravitational waves through space and time are like the ripples you see in water when you toss in a pebble.

“For my thesis, I showed how gravitational waves behave like other kinds of waves, like light and radar, X-rays,” Isaacson says.

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