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Archive for the ‘space’ category: Page 289

Dec 7, 2022

A new type of microscope inspired by James Webb sees molecules in 6D

Posted by in category: space

Its resolution is 1.5 times better compared to state-of-the-art techniques.

Researchers developed a new technology to see very small molecules in 6D. Inspired by the James Webb Space Telescope (JWST) design, the latest technology uses mirror segments to sort and gather light on a microscopic scale and take three-dimensional images of molecules both in position and orientation.


Washington University in St. Louis.

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Dec 6, 2022

Largest radio observatory ever will reveal secrets of the universe

Posted by in category: space

Two huge telescopes will provide the deepest and widest view of the cosmos to date.

Construction of the world’s biggest radio astronomy facility, the SKA Observatory, begins today. The observatory is a global project 30 years in the making.

Astronomers like me will use the telescopes to trace hydrogen over cosmic time and make precise measurements of gravity in extreme environments.

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Dec 6, 2022

Improving precision of pressure determination in nanosecond X-ray diffraction experiments

Posted by in categories: physics, space

X-ray diffraction measurements under laser-driven dynamic compression allow researchers to investigate the atomic structure of matter at hundreds of thousands of atmospheres of pressure and temperatures of thousands of degrees, with broad implications for condensed matter physics, planetary science and astronomy.

Pressure determination in these experiments often relies on velocimetry measurements coupled with modeling that requires accurate knowledge of the optical and thermomechanical properties of a window material, resulting in significant systematic uncertainty.

In new research published in Physical Review B, Lawrence Livermore National Laboratory (LLNL) scientists report on a series of X-ray diffraction experiments on five metals dynamically compressed to 600 GPa (6,000,000 atmospheres of pressure). In addition to collecting atomic structure information for multiple compressed samples, the team demonstrated a different approach for pressure determination applicable to X-ray diffraction experiments under quasi-isentropic ramp compression.

Dec 6, 2022

Construction Begins on World’s Biggest Radio Telescope, Set to Observe the ‘Epoch of Reionization’

Posted by in category: space

The intercontinental Square Kilometer Array will comprise thousands of dishes to image vast swathes of the sky.

Dec 6, 2022

Scientists delighted after failing to detect key signal from space

Posted by in category: space

Scientists have failed to detect a key signal from space – and used it to explain some of the earliest parts of the universe.

The inability to pick up the signal has allowed researchers to better understand the first galaxies to exist. It is one of the first times they have been able to study the period known as the “cosmic dawn”, when the first stars and galaxies came into being.

Scientists are now able to place limits on the mass and energy coming out of those first stars and galaxies – using a counterintuitive method.

Dec 6, 2022

‘It’s getting dark’: ‘Good Night Oppy’ recounts the sudden death of a Mars rover

Posted by in category: space

In the opening scenes of the new film “Good Night Oppy,” the Opportunity rover rolls along through Perseverance Valley on Mars in June 2018, as “Roam” by The B-52s fills the room at mission control.

The peppy tune was the rover’s wake-up song, played at NASA’s Jet Propulsion Laboratory in Pasadena, California. In the same way NASA has used a song to wake up astronauts each day they spend in space since the 1960s, the Opportunity rover team began their daily shifts with a song that set the mood for “Oppy’s” journey.

But a storm brewing on the horizon changed everything.

Dec 5, 2022

Asymmetry Detected in the Distribution of Galaxies

Posted by in category: space

Two new studies suggest that certain tetrahedral arrangements of galaxies outnumber their mirror images, potentially reflecting details of the universe’s birth. But confirmation is needed.

Dec 5, 2022

An iconic nearby astronomical object has been stealing stars from other galaxies

Posted by in categories: evolution, space

“What this new result does is provide a clearer picture of how our local universe has come together — it is telling us that at least in one of the large galaxies, there has been this sporadic feeding of small galaxies,” Lewis said in a press release.

Globular clusters are at the center of this research. They’re older associations of stars that have lower metallicity. There are at least 150 in the Milky Way, likely more. They play a role in the galactic evolution, but the role isn’t clearly understood. Globulars, as they’re known, are more prevalent in a galaxy’s halo, while their counterparts, open clusters, are found in the galactic disks.

The researchers behind this work identified a population of globulars in Andromeda’s inner halo that all have the same metallicity. Metallicity refers to the elemental makeup of stars, with elements heavier than hydrogen and helium referred to as metals in astronomy. The globulars have lower metallicity than most stars in the same region, meaning they came from elsewhere, not from Andromeda itself. It also means they’re older since there were fewer heavy elements in the early Universe than there are now. Lewis named the collection of globulars the Dulai Structure, which means black stream in Welsh.

Dec 5, 2022

Elon Musk JUST REVEALED His NEW Secret Weapon That Will CHANGE EVERYTHING!

Posted by in categories: Elon Musk, internet, space, supercomputing, sustainability

https://www.youtube.com/watch?v=YO12_V3AE3M

Elon musk JUST REVEALED powerful dojo supercomputer that tripped the power grid!

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Dec 4, 2022

New Estimates Suggest There Are Around 300 Million Habitable Planets in Our Galaxy

Posted by in category: space

A new study that analyzed new data segments suggests there are around 300 million habitable planets in our Milky Way Galaxy alone.

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