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Categories: Paleontology: Dinosaurs, Space: The Solar System

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Space: The Solar System
Published

Juno and Hubble data reveal electromagnetic 'tug-of-war' lights up Jupiter’s upper atmosphere      (via sciencedaily.com) 

New space research has revealed a complex 'tug-of-war' lights up aurorae in Jupiter's upper atmosphere. The study describes the delicate current cycle driven by Jupiter’s rapid rotation and the release of sulphur and oxygen from volcanoes on its moon, Io.

Space: The Solar System
Published

Shocked zircon find a 'one-off gift' from Mars      (via sciencedaily.com) 

Researchers studying a Martian meteorite have found the first evidence of high-intensity damage caused by asteroid impact, in findings that have implications for understanding when conditions suitable for life may have existed on early Mars.

Paleontology: Dinosaurs
Published

Low volcanic temperature ushered in global cooling and the thriving of dinosaurs      (via sciencedaily.com) 

Dinosaurs came to flourish during the Jurassic period after a volcanic eruption roughly 201 millions years ago wiped out many marine and land animals, leaving them able to evolve and grow. Now, further details about this eruption and the mass extinction have been revealed. A group of researchers demonstrated how low temperature magma slowly heated sedimentary rocks, causing high sulfur dioxide and low carbon dioxide emissions, a process which cooled the earth.

Space: The Solar System
Published

Extreme exoplanet has a complex and exotic atmosphere      (via sciencedaily.com) 

An international team analyzed the atmosphere of one of the most extreme known planets in great detail. The results from this hot, Jupiter-like planet that was first characterized with the help of the CHEOPS space telescope, may help astronomers understand the complexities of many other exoplanets -- including Earth-like planets.

Space: Structures and Features Space: The Solar System
Published

Scientists explain mysterious finger-like features in solar flares      (via sciencedaily.com) 

Astronomers have presented a new explanation for the mysterious downward-moving dark voids seen in some solar flares.

Geoscience: Geomagnetic Storms Space: The Solar System
Published

Ancient ice reveals mysterious solar storm      (via sciencedaily.com) 

Through analysis of ice cores from Greenland and Antarctica, a research team has found evidence of an extreme solar storm that occurred about 9,200 years ago. What puzzles the researchers is that the storm took place during one of the sun's more quiet phases -- during which it is generally believed our planet is less exposed to such events.

Space: The Solar System
Published

Liquid water beneath Martian south polar cap?      (via sciencedaily.com) 

Scientists measured the properties of ice-brine mixtures as cold as -145 degrees Fahrenheit to help confirm that salty water likely exists between grains of ice or sediment under the ice cap at Mars' south pole. Laboratory measurements support oddly bright reflections detected by the MARSIS subsurface sounding radar aboard ESA's Mars Express orbiter.

Space: Exploration Space: The Solar System
Published

New control technique uses solar panels to reach desired Mars orbit      (via sciencedaily.com) 

Aerospace engineers have developed a way to use articulated solar panels to steer the satellite during aerobraking, reducing the number of passes needed, resulting in potential savings in propellant, time, and money.

Space: The Solar System
Published

Hope for present-day Martian groundwater dries up in new study      (via sciencedaily.com) 

Liquid water previously detected under Mars' ice-covered south pole is probably just a dusty mirage, according to a new study of the Red Planet. The finding challenges a 2018 study that appeared to find liquid water under Mars' south polar cap.

Space: The Solar System
Published

Consistent asteroid showers rock previous thinking on Mars craters      (via sciencedaily.com) 

New research has confirmed the frequency of asteroid collisions that formed impact craters on Mars has been consistent over the past 600 million years.

Paleontology: Dinosaurs
Published

Muscular study provides new information about how the largest dinosaurs moved and evolved      (via sciencedaily.com) 

New research has revealed how giant 50-ton sauropod dinosaurs, like Diplodocus, evolved from much smaller ancestors, like the wolf-sized Thecodontosaurus.

Space: The Solar System
Published

Internal ocean in small Saturn moon uncovered      (via sciencedaily.com) 

A scientist recently set out to prove that the tiny, innermost moon of Saturn was a frozen inert satellite and instead discovered compelling evidence that Mimas has a liquid internal ocean. In the waning days of NASA's Cassini mission, the spacecraft identified a curious libration, or oscillation, in the moon's rotation, which often points to a geologically active body able to support an internal ocean.

Space: The Solar System
Published

Newly discovered carbon may yield clues to ancient Mars      (via sciencedaily.com) 

NASA's Curiosity rover landed on Mars on Aug. 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken from half a dozen exposed locations, including an exposed cliff, leave researchers with three plausible explanations for the carbon's origin -- cosmic dust, ultraviolet degradation of carbon dioxide, or ultraviolet degradation of biologically produced methane.

Space: The Solar System
Published

Martian meteorite’s organic materials origin not biological, formed by geochemical interactions between water and rock      (via sciencedaily.com) 

Organic molecules found in a meteorite that hurtled to Earth from Mars were synthesized during interactions between water and rocks that occurred on the Red Planet about 4 billion years ago, according to new analysis.

Space: The Solar System
Published

New explanation for Moon’s half-century magnetic mystery      (via sciencedaily.com) 

A new study reveals how the diminutive Moon could have been an occasional magnetic powerhouse early in its history, a question that has confounded researchers since NASA's Apollo program began in the 1960s.

Space: The Solar System
Published

'Slushy' magma ocean led to formation of the Moon’s crust      (via sciencedaily.com) 

Scientists have shown how the freezing of a 'slushy' ocean of magma may be responsible for the composition of the Moon's crust.

Space: The Solar System
Published

Oxygen ions in Jupiter's innermost radiation belts      (via sciencedaily.com) 

Researchers find high-energy oxygen and sulfur ions in Jupiter's inner radiation belts -- and a previously unknown ion source.

Space: Exploration Space: The Solar System
Published

Rugby ball-shaped exoplanet discovered      (via sciencedaily.com) 

With the help of the CHEOPS space telescope, an international team was able to detect the deformation of an exoplanet for the first time. Due to strong tidal forces, the appearance of the planet WASP-103b resembles a rugby ball rather than a sphere.

Paleontology: Dinosaurs
Published

Within a dinosaur’s head: Ankylosaur was sluggish and deaf      (via sciencedaily.com) 

Scientists took a closer look at the braincase of a dinosaur from Austria. The group examined the fossil with a micro-CT and found surprising new details: it was sluggish and deaf.

Space: The Solar System
Published

Ocean physics explain cyclones on Jupiter      (via sciencedaily.com) 

Images from NASA's June Spacecraft have given oceanographers the raw materials for a new study that describes the rich turbulence at Jupiter's poles and the physical forces that drive the large cyclones.