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Categories: Offbeat: Paleontology and Archeology, Space: Structures and Features
Published 1,700-year-old spider monkey remains discovered in Teotihuacán, Mexico
(via sciencedaily.com) Original source The complete skeletal remains of a spider monkey -- seen as an exotic curiosity in pre-Hispanic Mexico -- grants researchers new evidence regarding social-political ties between two ancient powerhouses: Teotihuacán and Maya Indigenous rulers. The remains of other animals were also discovered, as well as thousands of Maya-style mural fragments and over 14,000 ceramic sherds from a grand feast. These pieces are more than 1,700 years old.
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.
Published The tilt in our stars: The shape of the Milky Way's halo of stars is realized
(via sciencedaily.com) New data throws out the textbook picture of a spherical stellar halo and reinforces a dynamic origin story of two galaxies that collided billions of years ago.
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.
Published Elusive, dusty inner region of distant galaxy
(via sciencedaily.com) An international team of scientists has achieved the milestone of directly observing the long-sought, innermost dusty ring around a supermassive black hole, at a right angle to its emerging jet. Such a structure was thought to exist in the nucleus of galaxies but had been difficult to observe directly because intervening material obscured our line of sight.
Published NASA's Webb catches fiery hourglass as new star forms
(via sciencedaily.com) NASA's James Webb Space Telescope has revealed the once-hidden features of the protostar within the dark cloud L1527, providing insight into the beginnings of a new star. These blazing clouds within the Taurus star-forming region are only visible in infrared light, making it an ideal target for Webb's Near-Infrared Camera (NIRCam).
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.
Published How does radiation travel through dense plasma?
(via sciencedaily.com) Researchers provide experimental data about how radiation travels through dense plasmas. Their data will improve plasma models, which allow scientists to better understand the evolution of stars and may aid in the realization of controlled nuclear fusion as an alternative energy source.
Published WALLABY builds an intergalactic map in the outback
(via sciencedaily.com) A radio telescope in remote Western Australia is helping to build a 3-dimensional map of the night sky, mapping nearby galaxies up to a billion light years away.
Published Footprints claimed as evidence of ice age humans in North America need better dating, new research shows
(via sciencedaily.com) The preserved footprints found in New Mexico's Lake Otero Basin would upend scientific understanding of how, and when, humans first arrived in North America, if they are accurately dated. A new study brings the age claim into question.
Published Cosmic chocolate pralines: General neutron star structure revealed
(via sciencedaily.com) Through extensive model calculations, physicistshave reached general conclusions about the internal structure of neutron stars, where matter reaches enormous densities: depending on their mass, the stars can have a core that is either very stiff or very soft.
Published Welsh 'weird wonder' fossils add piece to puzzle of arthropod evolution
(via sciencedaily.com) Original source International team of researchers describe new fossil species discovered in fossil deposit near Llandrindod Wells in mid-Wales. The fossil, Mierridduryn bonniae, shares many features with Cambrian 'weird wonder' Opabinia, but is 40 million years younger. Robust phylogenetic analyses suggest that Mierridduryn is either the third opabiniid ever discovered, or is a distinct group that is key for understanding the evolution of the arthropod head.
Published Prehistoric predator? Artificial intelligence says no
(via sciencedaily.com) Artificial intelligence has revealed that prehistoric footprints thought to be made by a vicious dinosaur predator were in fact from a timid herbivore.
Published Astronomers capitalize on early access to James Webb Space Telescope data
(via sciencedaily.com) First in line to receive data transmissions from the James Webb Space Telescope, a team of astronomers is using the unprecedentedly clear observations to reveal the secret inner workings of galaxies.
Published Safety in space: Synthetic hibernation could provide protection from cosmic radiation
(via sciencedaily.com) It is still a glimpse into the future: Astronauts could be put into artificial hibernation and in this state be better protected from cosmic radiation. At present, there are already promising approaches to follow up such considerations. An international research team now has found decisive indications of the possible benefits of artificial hibernation for radiation resistance.
Published Study of 'polluted' white dwarfs finds that stars and planets grow together
(via sciencedaily.com) A team of astronomers have found that planet formation in our young Solar System started much earlier than previously thought, with the building blocks of planets growing at the same time as their parent star.
Published Oldest evidence of the controlled use of fire to cook food, researchers report
(via sciencedaily.com) Original source The remains of a huge carp fish mark the earliest signs of cooking by prehistoric human to 780,000 years ago, predating the available data by some 600,000 years, according to researchers.
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.
Published Searching for traces of dark matter with neutron spin clocks
(via sciencedaily.com) An international research team has succeeded in significantly narrowing the scope for the existence of dark matter. The experiment makes an important contribution to the search for these particles.
Published Black holes don't always power gamma-ray bursts, new research shows
(via sciencedaily.com) Space scientists may need to rethink how gamma-ray bursts are formed after new research shows new-born supramassive stars, not black holes, are sometimes responsible for these huge extragalactic bursts of energy.