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Categories: Paleontology: Dinosaurs, Space: The Solar System

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Paleontology: Dinosaurs
Published

Dense bones allowed Spinosaurus to hunt underwater      (via sciencedaily.com) 

Spinosaurus is the largest predatory dinosaur known -- over two metres longer than the longest Tyrannosaurus rex -- but the way it hunted has been a subject of debate for decades. In a new paper, palaeontologists have taken a different approach to decipher the lifestyle of long-extinct creatures: examining the density of their bones.

Space: The Solar System
Published

Nearby star could help explain why our Sun didn’t have sunspots for 70 years      (via sciencedaily.com) 

Astronomers identified a nearby star whose sunspot cycles appear to have stopped. Studying this star might help explain the unusual period from the mid 1600s to the early 1700s when our Sun paused its sunspot cycles.

Paleontology: Dinosaurs
Published

Soil erosion and wildfire another nail in coffin for Triassic era      (via sciencedaily.com) 

New research has revealed that soil erosion and wildfires contributed to a mass extinction event 201 million years ago that ended the Triassic era and paved the way for the rise of dinosaurs in the Jurassic period.

Space: Structures and Features Space: The Solar System
Published

Look! Up in the sky! Is it a planet? Nope, just a star      (via sciencedaily.com)     Original source 

Among thousands of known exoplanets, astronomers have flagged three that are actually stars.

Space: Exploration Space: The Solar System
Published

Magnetic reconnection breakthrough may help predict space weather      (via sciencedaily.com) 

Researchers have recently discovered a breakthrough in magnetic reconnection that could ultimately help predict space weather.

Paleontology: Dinosaurs
Published

Newly identified softshell turtle lived alongside T. rex and Triceratops      (via sciencedaily.com) 

Scientists describe the find of a new softshell turtle from the end of the Cretaceous Period.

Paleontology: Dinosaurs
Published

New species of stegosaur is oldest discovered in Asia, and possibly the world      (via sciencedaily.com) 

Relatively small, but fearsome-looking stegosaur measured about 2.8 meters (9 feet) from nose to tail -- but scientists can't tell whether the remains are those of an adult or juvenile.

Paleontology: Dinosaurs
Published

Physics race pits Usain Bolt against Jurassic Park dinosaur      (via sciencedaily.com) 

A physics professor has developed an innovative activity that poses the question: Is Usain Bolt faster than a 900-pound dinosaur?

Paleontology: Dinosaurs
Published

Researchers reconstruct ancient fish lizard      (via sciencedaily.com) 

Scientists have mapped 300 years of research on the prehistoric marine reptiles known as ichthyosaurs. Using a uniquely well-preserved fossil, the team has also created the scientifically most up-to-date reconstruction of an ichthyosaur currently available.

Space: The Solar System
Published

A solar illusion: Coronal loops may not be what they seem      (via sciencedaily.com) 

Many coronal loops -- ropey strands of plasma that scientists have long thought existed in the sun's atmosphere -- may actually be optical illusions, according to a new paper that challenges prevailing assumptions of what we know, and don't know, about the sun.

Paleontology: Dinosaurs
Published

Tyrannosaurus remains hint at three possible distinct species      (via sciencedaily.com) 

A new analysis of Tyrannosaurus skeletal remains reveals physical differences in the femur, other bones and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be re-categorized into three distinct groups or species, reports a new study.

Energy: Nuclear Space: The Solar System
Published

Deep neural network to find hidden turbulent motion on the sun      (via sciencedaily.com) 

Scientists developed a neural network deep learning technique to extract hidden turbulent motion information from observations of the Sun. Tests on three different sets of simulation data showed that it is possible to infer the horizontal motion from data for the temperature and vertical motion. This technique will benefit solar astronomy and other fields such as plasma physics, fusion science, and fluid dynamics.

Paleontology: Dinosaurs
Published

The last day of the dinosaurs      (via sciencedaily.com) 

The asteroid which killed nearly all of the dinosaurs struck Earth during springtime. This conclusion was drawn by an international team of researchers after having examined thin sections, high-resolution synchrotron X-ray scans, and carbon isotope records of the bones of fishes that died less than 60 minutes after the asteroid impacted.

Paleontology: Dinosaurs Paleontology: Early Mammals and Birds
Published

New fossil birds discovered near China’s Great Wall – one had a movable, sensitive 'chin'      (via sciencedaily.com) 

Two new species of fossil birds that lived alongside the dinosaurs have ben discovered near the Great Wall of China. One of the new species had a sensitive, movable bony appendage at the tip of its lower jaw that it might have used to find food.

Paleontology: Dinosaurs Paleontology: Early Mammals and Birds
Published

First evidence indicating dinosaur respiratory infection      (via sciencedaily.com) 

Scientists have discovered the first evidence of a unique respiratory infection in the fossilized remains of a dinosaur that lived nearly 150 million years ago. Researchers examined the remains of an immature diplodocid -- a long-necked herbivorous sauropod dinosaur, like 'Brontosaurus' - dating back to the Late Jurassic Period of the Mesozoic Era. The dinosaur nicknamed 'Dolly,' discovered in southwest Montana, had evidence of an infection in the area of its neck vertebrae.

Space: The Solar System
Published

Predicting the efficiency of oxygen-evolving electrolysis on the Moon and Mars      (via sciencedaily.com) 

Scientists have today provided more insight into the possibility of establishing a pathway to generate oxygen for humans to potentially call the Moon or Mars 'home' for extended periods of time.

Space: The Solar System
Published

How Mars lost its oceans      (via sciencedaily.com) 

It has long been known that Mars once had oceans due in part to a protective magnetic field similar to Earth's. However, the magnetic field disappeared, and new research may finally be able to explain why. Researchers recreated conditions expected in the core of Mars billions of years ago and found that the behavior of the molten metal thought to be present likely gave rise to a brief magnetic field that was destined to fade away.

Space: Exploration Space: The Solar System
Published

Saturn’s high-altitude winds generate an extraordinary aurorae, study finds      (via sciencedaily.com) 

Space scientists have discovered a never-before-seen mechanism fueling huge planetary aurorae at Saturn.

Paleontology: Dinosaurs
Published

Large new titanosaurian dinosaur from the Pyrenees      (via sciencedaily.com) 

Researchers have described the new species of titanosaur dinosaur Abditosaurus kuehnei from the remains excavated at the Orcau-1 site, in the southern Pyrenees (Catalonia, Spain). The semiarticulated 70.5-million-year-old skeleton is the most complete specimen of this herbivorous group of dinosaurs discovered so far in Europe.

Space: The Solar System
Published

Puffy planets lose atmospheres, become super-Earths      (via sciencedaily.com) 

Astronomers have identified two different cases of 'mini-Neptune' planets that are losing their puffy atmospheres and likely transforming into super-Earths.