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Categories: Paleontology: Dinosaurs, Space: Cosmology

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Paleontology: Dinosaurs Paleontology: Fossils
Published

Oldest Pterodactylus fossil found in Germany      (via sciencedaily.com) 

The oldest Pterodactylus specimen was found near Painten, Germany. The fossil is about one million years older than other Pterodactylus specimens. The specimen is a complete, well-preserved skeleton of a small-sized individual. With a 5-cm-long skull, it represents a rare 'sub-adult' individual.

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.

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.

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.

Offbeat: Paleontology and Archeology Paleontology: Dinosaurs
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.

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.

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.

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.

Paleontology: Dinosaurs
Published

New Scottish fossil sheds light on the origins of lizards      (via sciencedaily.com) 

A fossil discovery from Scotland has provided new information on the early evolution of lizards, during the time of the dinosaurs.

Space: Cosmology Space: Structures and Features
Published

Cosmic rays drive galaxy's winds      (via sciencedaily.com) 

VLA observations revealed that cosmic rays can play an important role in driving winds that rob galaxies of the gas needed to form new stars. This mechanism may be an important factor in galactic evolution, particularly at earlier times in the history of the universe.

Paleontology: Dinosaurs Paleontology: Early Mammals and Birds
Published

Fossil bird's skull reconstruction reveals a brain made for smelling and eyes made for daylight      (via sciencedaily.com) 

Piecing together the crushed skull of a fossil bird that lived alongside the dinosaurs helped researchers extrapolate what its brain would have looked like: big olfactory bulbs would have meant that this bird, the earliest known animal to eat fruit, had a better sense of smell than most modern birds. And the bones around its eye sockets revealed that it would have been better at seeing by day than at night.

Space: Cosmology
Published

Using carbon-carbon clumping to detect the signature of biotic hydrocarbons      (via sciencedaily.com) 

The mystery of the origin of hydrocarbons found in extraterrestrial environment may finally be resolved, thanks to a technique based on a 13C-13C abundance analysis. By measuring the abundance of clumped 13C-13C isotope in the hydrocarbons, it can be inferred if a hydrocarbon was produced via biological processes. This could open doors to distinguishing such hydrocarbons from abiotic ones, aiding our search for extra-terrestrial life.