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Categories: Mathematics: General, Space: Cosmology

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Space: Cosmology Space: Structures and Features
Published

Non-detection of key signal allows astronomers to determine what the first galaxies were -- and weren't -- like      (via sciencedaily.com) 

Researchers have been able to make some key determinations about the first galaxies to exist, in one of the first astrophysical studies of the period in the early Universe when the first stars and galaxies formed, known as the cosmic dawn.

Mathematics: General
Published

Using math to better treat cancer      (via sciencedaily.com) 

Researchers have identified a new method for scheduling radiation therapy that could be as much as 22 percent more effective at killing cancer cells than current standard radiation treatment regimens.

Space: Cosmology Space: Structures and Features
Published

Astronomers observe intra-group light -- the elusive glow between distant galaxies      (via sciencedaily.com) 

Pioneering a new technique, researchers have peered into the extremely faint light that exists between galaxies to describe the history and state of orphan stars.

Space: Cosmology Space: Structures and Features
Published

Short gamma-ray bursts traced farther into distant universe      (via sciencedaily.com) 

Astronomers have developed the most extensive inventory to date of the galaxies where short gamma-ray bursts (SGRBs) originate. Using several highly sensitive instruments and sophisticated galaxy modeling, the researchers pinpointed the galactic homes of 84 SGRBs and probed the characteristics of 69 of the identified host galaxies.

Mathematics: General
Published

Moral behavior pays off      (via sciencedaily.com) 

Coupling two approaches of game theory can shed light on how moral norms evolve.

Space: Cosmology Space: Structures and Features
Published

Black holes in eccentric orbit      (via sciencedaily.com) 

A research team has reconstructed the origin of an unusual gravitational wave signal. The signal GW190521 may result from the merger of two massive black holes that captured each other in their gravitational field and then collided while spinning around each other in a rapid, eccentric motion.

Space: Cosmology Space: Structures and Features
Published

NASA's Webb draws back curtain on universe's early galaxies      (via sciencedaily.com) 

A few days after officially starting science operations, NASA's James Webb Space Telescope propelled astronomers into a realm of early galaxies, previously hidden beyond the grasp of all other telescopes until now.

Space: Cosmology Space: Structures and Features Space: The Solar System
Published

2400 new eyes on the sky to see cosmic rainbows      (via sciencedaily.com) 

The Subaru Telescope successfully demonstrated engineering first light with a new instrument that will use about 2400 fiberoptic cables to capture the light from heavenly objects. Full operation is scheduled to start around 2024. The ability to observe thousands of objects simultaneously will provide unprecedented amounts of data to fuel Big Data Astronomy in the coming decade.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

Hubble captures three faces of evolving supernova in early universe      (via sciencedaily.com) 

Three different moments in a far-off supernova explosion were captured in a single snapshot by NASA's Hubble Space Telescope. The star exploded more than 11 billion years ago, when the universe was less than a fifth of its current age of 13.8 billion years.

Space: Cosmology Space: Structures and Features Space: The Solar System
Published

A supernova in distant space allows us to understand the origin of the elements in the universe      (via sciencedaily.com) 

A supernova is a stellar explosion, which occurs when the lives of some really massive stars come to an end. In this violent epilogue, the star expels the material from its outer layers by means of a shock wave, allowing us to see the various elements it was composed of.

Space: Cosmology Space: Structures and Features
Published

Red-supergiant supernova: Secrets of an earlier Universe      (via sciencedaily.com)     Original source 

An international research team has measured the size of a star dating back more than 11 billion years ago using images that show the evolution of the star exploding and cooling. The research could help scientists learn more about the early Universe.

Space: Cosmology Space: Structures and Features Space: The Solar System
Published

Oldest planetary debris in our galaxy found from new study      (via sciencedaily.com)     Original source 

Astronomers have identified the oldest star in our galaxy that is accreting debris from orbiting planetesimals, making it one of the oldest rocky and icy planetary systems discovered in the Milky Way.

Space: Cosmology
Published

First glimpse of what gravity looks like on cosmological scales      (via sciencedaily.com) 

Scientists have reconstructed gravity to find a more robust way of understanding the cosmos.

Space: Cosmology Space: Structures and Features
Published

IceCube neutrinos give us first glimpse into the inner depths of an active galaxy      (via sciencedaily.com) 

Scientists have found evidence of high-energy neutrino emission from NGC 1068, also known as Messier 77, an active galaxy in the constellation Cetus and one of the most familiar and well-studied galaxies to date.

Mathematics: General Mathematics: Modeling Mathematics: Puzzles
Published

Mathematicians explain how some fireflies flash in sync      (via sciencedaily.com) 

A new study by mathematicians shows that math borrowed from neuroscience can describe how swarms of these unique insects coordinate their light show, capturing key details about how they behave in the wild.

Space: Cosmology Space: Structures and Features
Published

Uncovering the massive quantum mysteries of black holes      (via sciencedaily.com) 

Bizarre quantum properties of black holes -- including their mind-bending ability to have different masses simultaneously -- have been confirmed by physicists.

Mathematics: General Mathematics: Modeling
Published

Unveiling the dimensionality of complex networks through hyperbolic geometry      (via sciencedaily.com)     Original source 

Reducing redundant information to find simplifying patterns in data sets and complex networks is a scientific challenge in many knowledge fields. Moreover, detecting the dimensionality of the data is still a hard-to-solve problem. A new article presents a method to infer the dimensionality of complex networks through the application of hyperbolic geometrics, which capture the complexity of relational structures of the real world in many diverse domains.

Mathematics: General Mathematics: Modeling Mathematics: Statistics
Published

Mathematical modeling suggests U.S. counties are still unprepared for COVID spikes      (via sciencedaily.com)     Original source 

America was unprepared for the magnitude of the pandemic, which overwhelmed many counties and filled some hospitals to capacity. A new study suggests there may have been a mathematical method, of sorts, to the madness of those early COVID days.

Space: Cosmology
Published

Rare Earth elements synthesis confirmed in neutron star mergers      (via sciencedaily.com) 

When two neutron stars merge, the resultant explosion forms heavy elements -- many of which make up our Universe. A new study has identified the specific rare-earth elements produced in a neutron star merger.

Mathematics: General Mathematics: Modeling Mathematics: Puzzles
Published

Music class in sync with higher math scores -- but only at higher-income schools      (via sciencedaily.com) 

Music and arts classes are often first on the chopping block when schools face tight budgets and pressure to achieve high scores on standardized tests. But it's precisely those classes that can increase student interest in school and even benefit their math achievement, according to a new study.