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Categories: Ecology: Invasive Species, Space: Exploration

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Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

New realistic computer model will help robots collect Moon dust      (via sciencedaily.com)     Original source 

A new computer model mimics Moon dust so well that it could lead to smoother and safer Lunar robot teleoperations.

Biology: Botany Biology: Zoology Ecology: Animals Ecology: Invasive Species Ecology: Nature Ecology: Trees Environmental: Ecosystems
Published

Modeling tree masting      (via sciencedaily.com)     Original source 

The effects of a phenomenon called tree masting on ecosystems and food webs can be better understood thanks to new theoretical models validated by real world observations.

Offbeat: General Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Little groundwater recharge in ancient Mars aquifer, according to new models      (via sciencedaily.com)     Original source 

Mars was once a wet world. The geological record of the Red Planet shows evidence for water flowing on the surface -- from river deltas to valleys carved by massive flash floods. But a new study shows that no matter how much rainfall fell on the surface of ancient Mars, very little of it seeped into an aquifer in the planet's southern highlands.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Black hole at center of the Milky Way resembles a football      (via sciencedaily.com)     Original source 

The supermassive black hole in the center of the Milky Way is spinning so quickly it is warping the spacetime surrounding it into a shape that can look like a football, according to a new study. That football shape suggests the black hole is spinning at a substantial speed, which researchers estimated to be about 60% of its potential limit.

Biology: Marine Ecology: Invasive Species Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Gulf corals still suffering more than a decade after Deepwater Horizon oil spill, scientists report      (via sciencedaily.com)     Original source 

Deep-water corals in the Gulf of Mexico are still struggling to recover from the devastating Deepwater Horizon oil spill in 2010, scientists report at the Ocean Science Meeting in New Orleans. Comparing images of more than 300 corals over 13 years -- the longest time series of deep-sea corals to date -- reveals that in some areas, coral health continues to decline to this day.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Astronomers report oscillation of our giant, gaseous neighbor      (via sciencedaily.com)     Original source 

A few years ago, astronomers uncovered one of the Milky Way's greatest secrets: an enormous, wave-shaped chain of gaseous clouds in our sun's backyard, giving birth to clusters of stars along the spiral arm of the galaxy we call home. Naming this astonishing new structure the Radcliffe Wave, the team now reports that the Radcliffe Wave not only looks like a wave, but also moves like one -- oscillating through space-time much like 'the wave' moving through a stadium full of fans.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Environmental: Biodiversity
Published

First-ever report of nesting of incredibly rare and endangered giant turtle      (via sciencedaily.com)     Original source 

Knowledge from local communities has resulted in the first-ever nesting evidence and discovery of a breeding population of an incredibly rare turtle in India.

Space: Astronomy Space: Cosmology Space: Exploration Space: General Space: The Solar System
Published

Under pressure -- space exploration in our time      (via sciencedaily.com)     Original source 

A new paradigm is taking shape in the space industry as the countries and entities accessing space continue to grow and diversify. This dynamic landscape creates both competition and potential for scientific collaboration, as well as the challenges and opportunities of progress.

Offbeat: General Offbeat: Space Space: Astronomy Space: Cosmology Space: Exploration Space: General Space: The Solar System
Published

Evidence of geothermal activity within icy dwarf planets      (via sciencedaily.com)     Original source 

A team found evidence for hydrothermal or metamorphic activity within the icy dwarf planets Eris and Makemake, located in the Kuiper Belt. Methane detected on their surfaces has the tell-tale signs of warm or even hot geochemistry in their rocky cores, which is markedly different than the signature of methane from a comet.

Biology: Botany Biology: General Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Ecosystems Environmental: General
Published

Reforestation programs could threaten vast area of tropical grasslands      (via sciencedaily.com)     Original source 

New research reveals the scale of inappropriate reforestation projects across Africa. A new study reveals that an area the size of France is threatened by forest restoration initiatives, such as the AFR100 initiative (African Forest Landscape Restoration Initiative), due to inappropriate restoration in the form of tree-planting.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Diverse ancient volcanoes on Mars discovered by planetary scientist may hold clues to pre-plate tectonic activity on Earth      (via sciencedaily.com)     Original source 

A geologist has revealed intriguing insights into the volcanic activity on Mars. He proposes that Mars has significantly more diverse volcanism than previously realized, driven by an early form of crust recycling called vertical tectonics. The findings shed light on the ancient crust of Mars and its potential implications for understanding early crustal recycling on both Mars and Earth.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Physics Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

A star like a Matryoshka doll: New theory for gravastars      (via sciencedaily.com)     Original source 

If gravitational condensate stars (or gravastars) actually existed, they would look similar to black holes to a distant observer. Two theoretical physicists have now found a new solution to Albert Einstein's theory of general relativity, according to which gravitational stars could be structured like a Russian matryoshka doll, with one gravastar located inside another.

Biology: Biochemistry Biology: Botany Biology: General Biology: Microbiology Biology: Zoology Ecology: Endangered Species Ecology: Invasive Species Ecology: Trees
Published

Scientists are unravelling the secrets of red and grey squirrel competition      (via sciencedaily.com)     Original source 

Researchers have identified significant differences between the diversity of gut bacteria in grey squirrels compared to red squirrels which could hold the key to further understanding the ability of grey squirrels to outcompete red squirrels in the UK.

Biology: General Biology: Microbiology Biology: Zoology Ecology: Invasive Species
Published

Climate change drove the emergence of West Nile virus in Europe      (via sciencedaily.com)     Original source 

Researchers demonstrate the contribution of climate change to the spatial expansion of West Nile virus in Europe, a virus that constitutes a new public health threat in the continent. Their findings highlight a notable increase in the area ecologically suitable for the virus circulation since the beginning of last century and an increase in the human population at risk of exposure, due in part to climate change.

Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature
Published

Australia's most at-risk bird species share some common traits      (via sciencedaily.com)     Original source 

Australian birds that live on islands are among the species most at risk of extinction, a first-of-its-kind study has shown. Australia has over 750 native bird species. But many of them are facing an uncertain future.

Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Alien invasion: Non-native earthworms threaten ecosystems      (via sciencedaily.com)     Original source 

Analysis reveals imported earthworm species have colonized large swaths of North America, and represent a largely overlooked threat to native ecosystems. The researchers warn of the need to better understand and manage the invaders in our midst.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features
Published

Mysterious gap in size distribution of super-earths explained      (via sciencedaily.com)     Original source 

Astronomers have uncovered evidence of how the enigmatic gap in the size distribution of exoplanets at around two Earth radii emerges. Their computer simulations demonstrate that the migration of icy, so-called sub-Neptunes into the inner regions of their planetary systems could account for this phenomenon. As they draw closer to the central star, evaporating water ice forms an atmosphere that makes the planets appear larger than in their frozen state. Simultaneously, smaller rocky planets gradually lose a portion of their original gaseous envelope, causing their measured radius to shrink over time.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Mimas' surprise: Tiny moon of Saturn holds young ocean beneath icy shell      (via sciencedaily.com)     Original source 

Saturn's moon Mimas harbors a global ocean beneath its icy shell, discovered through analysis of its orbit by Cassini spacecraft data. This ocean formed just 5-15 million years ago, making Mimas a prime candidate for studying early ocean formation and potential for life. This discovery suggests life-essential conditions might exist on seemingly inactive moons, expanding our search for life beyond Earth.

Offbeat: General Offbeat: Space Space: Astrophysics Space: Exploration Space: General
Published

Astrophysicists crack the case of 'disappearing' Sulphur in planetary nebulae      (via sciencedaily.com)     Original source 

Two astrophysicists have finally solved a 20-year-old astrophysical puzzle concerning the lower-than-expected amounts of the element sulphur found in Planetary Nebulae (PNe) in comparison to expectations and measurements of other elements and other types of astrophysical objects. The expected levels of sulphur have long appeared to be 'missing in action'. However, they have now finally reported for duty after hiding in plain sight, as a result of leveraging highly accurate and reliable data.