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Categories: Environmental: Wildfires, Space: The Solar System

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Space: Exploration Space: The Solar System
Published

New evidence for liquid water beneath the south polar ice cap of Mars      (via sciencedaily.com) 

An international team of researchers has revealed new evidence for the possible existence of liquid water beneath the south polar ice cap of Mars.

Environmental: Ecosystems Environmental: Wildfires
Published

Cattle grazing with virtual fencing shows potential to create wildfire fuel breaks, study finds      (via sciencedaily.com) 

The use of virtual fencing to manage cattle grazing on sagebrush rangelands has the potential to create fuel breaks needed to help fight wildfires, a recent study found.

Space: Exploration Space: The Solar System
Published

Layering, not liquid: Astronomers explain Mars' watery reflections      (via sciencedaily.com) 

Astronomers believe bright reflections beneath the surface of Mars' South Pole are not necessarily evidence of liquid water, but instead geological layers.

Space: Exploration Space: The Solar System
Published

Analysis of particles of the asteroid Ryugu delivers surprising results      (via sciencedaily.com)     Original source 

In December 2020, a small landing capsule brought rock particles from the asteroid Ryugu to Earth -- material from the beginnings of our solar system. The Japanese space probe Hayabusa 2 had collected the samples. Geoscientists have now discovered areas with a massive accumulation of rare earths and unexpected structures.

Environmental: Wildfires
Published

Indoor air quality experiments show exposure risks while cooking, cleaning      (via sciencedaily.com) 

When you're cooking or cleaning inside your home, what chemicals are you breathing, and are they potentially harmful? Chemists have given us a solid start on the answer. A large, collaborative research experiment recently attempted to map the airborne chemistry of a typical home. Researchers performed typical home activities like cooking and cleaning and used sophisticated instrumentation to document the chemistry that resulted.

Space: Exploration Space: The Solar System
Published

New Webb image captures clearest view of Neptune's rings in decades      (via sciencedaily.com) 

NASA's James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this distant planet's rings in more than 30 years, but its cameras reveal the ice giant in a whole new light.

Environmental: Wildfires
Published

Now you don't have to wait for smoke to know where fires are likely to occur      (via sciencedaily.com) 

Scientists have developed a way to forecast which of the Great Basin's more than 60 million acres have the highest probability of a large rangeland fire. The forecasts come from a model developed by the researchers that combines measures of accumulated annual and perennial grass vegetation that is potential fire fuel with recent weather and climate data. When integrated, this information can be translated into maps showing the likelihood of a large wildfire -- greater than 1,000 acres--across the Great Basin. These forecasts also can be scaled down to predict fire risk for counties or even single pastures.

Space: Exploration Space: The Solar System
Published

Newly formed craters located on Mars      (via sciencedaily.com) 

An international team of researchers with NASA's InSight mission located four new craters created by impacts on the surface of Mars. Using data from a seismometer and visuals acquired from the Mars Reconnaissance Orbiter, the team successfully calculated and confirmed the impact locations. Researchers have now captured the dynamics of an impact on Mars.

Space: Exploration Space: The Solar System
Published

Scientist helps identify new evidence for habitability in Enceladus's ocean      (via sciencedaily.com) 

The search for extraterrestrial life just got more interesting as a team of scientists has discovered new evidence for a key building block for life in the subsurface ocean of Saturn's moon Enceladus. New modeling indicates that Enceladus's ocean should be relatively rich in dissolved phosphorus, an essential ingredient for life.

Space: Exploration Space: The Solar System
Published

Geologist proposes the number of ancient Martian lakes might have been dramatically underestimated by scientists      (via sciencedaily.com) 

Though Mars is a frozen desert today, scientists have shown that Mars contains evidence of ancient lakes that existed billions of years ago, which could contain evidence for ancient life and climate conditions on the red planet. Through a meta-analysis of years of satellite data that shows evidence for lakes on Mars, a geologist has proposed that scientists might have dramatically underestimated the number of ancient Martian lakes that once existed.

Space: Exploration Space: The Solar System
Published

NASA's Perseverance rover investigates geologically rich Mars terrain      (via sciencedaily.com) 

NASA's Perseverance rover is well into its second science campaign, collecting rock-core samples from features within an area long considered by scientists to be a top prospect for finding signs of ancient microbial life on Mars.

Environmental: Wildfires
Published

Pollutants from burning structures linger in waterways post-wildfire      (via sciencedaily.com) 

As the frequency of wildfires has increased, so have pollutants in the waters from burned watersheds, say researchers in a review paper that highlights the need for more research in the area.

Space: Exploration Space: The Solar System
Published

Saturn's rings and tilt could be the product of an ancient, missing moon      (via sciencedaily.com) 

Scientists propose a lost moon of Saturn, which they call Chrysalis, pulled on the planet until it ripped apart, forming rings and contributing to Saturn's tilt.

Geoscience: Geomagnetic Storms Space: Structures and Features Space: The Solar System
Published

Where do high-energy particles that endanger satellites, astronauts and airplanes come from?      (via sciencedaily.com) 

Astrophysicists show how and when specific particles form and offers clues to questions that have troubled scientists since the 1940s.

Environmental: Wildfires
Published

New AI system predicts how to prevent wildfires      (via sciencedaily.com) 

A machine learning model can evaluate the effectiveness of different management strategies.

Space: Structures and Features Space: The Solar System
Published

Could more of Earth's surface host life?      (via sciencedaily.com) 

Of all known planets, Earth is as friendly to life as any planet could possibly be -- or is it? If Jupiter's orbit changes, a new study shows Earth could be more hospitable than it is today.

Space: Structures and Features Space: The Solar System
Published

Surprise finding suggests 'water worlds' are more common than we thought      (via sciencedaily.com) 

A new study suggests that many more planets may have large amounts of water than previously thought--as much as half water and half rock. The catch? All that water is probably embedded in the rock, rather than flowing as oceans or rivers on the surface.

Space: Structures and Features Space: The Solar System
Published

Planetary heist: Astronomers show massive stars can steal Jupiter-sized planets      (via sciencedaily.com) 

Jupiter-sized planets can be stolen or captured by massive stars in the densely populated stellar nurseries where most stars are born, a new study has found.

Environmental: Wildfires Geoscience: Environmental Issues
Published

Smoke from the Black Summer wildfires in Australia impacted the climate and high altitude winds of the southern hemisphere for more than a year and a half      (via sciencedaily.com) 

The 2019/20 wildfires in Australia transported more smoke into the atmosphere than observed ever before anywhere in the world. In the so-called Black Summer, three times as many particles reached high air layers as in the previous record wildfires in Canada during summer 2017. Research now reveals the climate impact of these huge fires: Smoke particles with a total mass of around one million tonnes spread across the southern hemisphere and affected the climate for about one and a half years by warming the upper atmosphere and cooling the lower atmosphere close to Earth's surface.

Space: Exploration Space: The Solar System
Published

Martian rock-metal composite shows potential of 3D printing on Mars      (via sciencedaily.com) 

A small amount of simulated crushed Martian rock mixed with a titanium alloy made a stronger, high-performance material in a 3D-printing process that could one day be used on Mars to make tools or rocket parts. The parts were made by researchers with as little as 5% up to 100% Martian regolith, a black powdery substance meant to mimic the rocky, inorganic material found on the surface of the red planet. While the parts with 5% Martian regolith were strong, the 100% regolith parts proved brittle and cracked easily. Still, even high-Martian content materials would be useful in making coatings to protect equipment from rust or radiation damage.