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First transiting exoplanet’s ‘chemical fingerprint’ reveals its distant birthplace

April 10, 2021 by Zakia

Astronomers have found evidence that the first exoplanet that was identified transiting its star could have migrated to a close orbit with its star from its original birthplace further away.

Analysis of the planet’s atmosphere by a team including University of Warwick scientists has identified the chemical fingerprint of a planet that formed much further away from its sun than it currently resides.

It confirms previous thinking that the planet has moved to its current position after forming, a mere 7 million km from its sun or the equivalent of 1/20th the distance from the Earth to our Sun. [Read more…] about First transiting exoplanet’s ‘chemical fingerprint’ reveals its distant birthplace

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    There might be many planets with water-rich atmospheresAn atmosphere is what makes life on Earth's surface possible, regulating our climate and sheltering us from damaging cosmic rays. But although telescopes have counted a growing number of rocky planets, scientists had thought most of their atmospheres long lost. However, a new study by University of Chicago and Stanford…
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    On the quest for other EarthsIn the search for planets capable of sustaining life, an international research team with members from ETH has taken a significant step forward. As the researchers reported recently in the journal Nature Communications, they found signs of a Neptune-sized planet in the Alpha Centauri star system, a mere 4.4 light years…
    Tags: planets, life, planet, atmosphere, exoplanet, team, water, star, planet's, universe

Filed Under: Research, Universe Tagged With: astronomers, atmosphere, carbon, chemical, exoplanet, form, formed, molecules, oxygen, planet, species, star, sun, time, water

Heavy water tastes sweet

April 10, 2021 by Zakia

Ordinary pure water has no distinct taste, but how about heavy water – does it taste sweet, as anecdotal evidence going back to 1930s may have indicated? And if yes – why, when D2O is chemically practically identical to H2O, of which it is a stable naturally-occurring isotope?

These questions arose shortly after heavy water was isolated almost 100 years ago, but they had not been satisfactorily answered until now.

Now, researchers Pavel Jungwirth and Phil Mason with students Carmelo Tempra and Victor Cruces Chamorro at the Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague), together with the group of Masha Niv at the Hebrew University and Maik Behrens at the Technical University of Munich, found answers to these questions using molecular dynamics simulations, cell-based experiments, mouse models, and human subjects. [Read more…] about Heavy water tastes sweet

Filed Under: Health, Research Tagged With: chemical, chemically, distinct, heavy, human, humans, jungwirth, receptor, sweet, taste, water

Making cleaner, greener plastics from waste fish parts

April 6, 2021 by Zakia

Polyurethanes, a type of plastic, are nearly everywhere – in shoes, clothes, refrigerators and construction materials. But these highly versatile materials can have a major downside. Derived from crude oil, toxic to synthesize, and slow to break down, conventional polyurethanes are not environmentally friendly. Today, researchers discuss devising what they say should be a safer, biodegradable alternative derived from fish waste – heads, bones, skin and guts – that would otherwise likely be discarded.

The researchers will present their results today at the spring meeting of the American Chemical Society (ACS). ACS Spring 2021 is being held online April 5-30. Live sessions will be hosted April 5-16, and on-demand and networking content will continue through April 30. The meeting features nearly 9,000 presentations on a wide range of science topics.

If developed successfully, a fish-oil based polyurethane could help meet the immense need for more sustainable plastics, says Francesca Kerton, PhD, the project’s principal investigator. “It is important that we start designing plastics with an end-of-life plan, whether it’s chemical degradation that turns the material into carbon dioxide and water, or recycling and repurposing.” [Read more…] about Making cleaner, greener plastics from waste fish parts

Filed Under: Environment, Research Tagged With: acs, amine, amino, continue, derived, developed, epoxides, fish, kerton, material, meeting, oil, plastics, polyurethanes, team, water, wheeler

Researchers discover new type of ancient crater lake on Mars

April 2, 2021 by Zakia

Researchers from Brown University have discovered a previously unknown type of ancient crater lake on Mars that could reveal clues about the planet’s early climate.

In a study published in Planetary Science Journal, a research team led by Brown Ph.D. student Ben Boatwright describes an as-yet unnamed crater with some puzzling characteristics.

The crater’s floor has unmistakable geologic evidence of ancient stream beds and ponds, yet there’s no evidence of inlet channels where water could have entered the crater from outside, and no evidence of groundwater activity where it could have bubbled up from below. [Read more…] about Researchers discover new type of ancient crater lake on Mars

Filed Under: Space, Universe Tagged With: boatwright, channels, climate, crater, early, evidence, features, lake, mars, uncategorized, water

Waste from making purple corn chips yields a natural dye

March 26, 2021 by Zakia

The more colorful a food, the more nutritious it probably is.

For example, purple corn contains compounds associated with a reduced risk of developing diabetes and heart disease. The cobs contain the same compounds but are typically thrown out.

Now, researchers report a step-wise biorefinery approach in ACS Sustainable Chemistry & Engineering that uses the whole cob, producing a dye and a possible nutraceutical with the pigments, and an animal litter with the left-overs. [Read more…] about Waste from making purple corn chips yields a natural dye

Filed Under: Industry, News Tagged With: approach, biorefinery, cob, cobs, compounds, corn, corncobs, dye, extract, insoluble, litter, material, pigments, properties, purple, researchers, waste, water

The value of cooperation for sustainable development in transboundary river basins

March 23, 2021 by Editor

Can cooperation across sectors and countries help to achieve sustainable development? How do stakeholders in the Indus and Zambezi basins envision the future and how can they make that future a reality?

Researchers at the International Institute for Applied Systems Analysis (IIASA) looked into these questions as part of a large-scale initiative with international partners.

In November 2016, IIASA partnered with the Global Environment Facility (GEF), and the United Nations Industrial Development Organization (UNIDO) to establish the Integrated Solutions for Water, Energy, and Land (ISWEL) project. [Read more…] about The value of cooperation for sustainable development in transboundary river basins

Filed Under: Environment, Features Tagged With: basin, basins, countries, development, energy, indus, investments, iswel, project, resources, sustainable, transboundary, water, zambezi

Better batteries start with basics – and a big computer

March 22, 2021 by Zakia

To understand the fundamental properties of an industrial solvent, chemists with the University of Cincinnati turned to a supercomputer.

UC chemistry professor and department head Thomas Beck and UC graduate student Andrew Eisenhart ran quantum simulations to understand glycerol carbonate, a compound used in biodiesel and as a common solvent.

They found that the simulation provided detail about hydrogen bonding in determining the structural and dynamic properties of the liquid that was missing from classical models. The study was published in the Journal of Physical Chemistry B. [Read more…] about Better batteries start with basics – and a big computer

Filed Under: Industry, News Tagged With: batteries, beck, better, chemists, energy, fundamental, larger, liquid, potassium, quantum, solvent, storage, structure, study, things, water

There might be many planets with water-rich atmospheres

March 16, 2021 by Zakia

An atmosphere is what makes life on Earth’s surface possible, regulating our climate and sheltering us from damaging cosmic rays. But although telescopes have counted a growing number of rocky planets, scientists had thought most of their atmospheres long lost.

However, a new study by University of Chicago and Stanford University researchers suggests a mechanism whereby these planets could not only develop atmospheres full of water vapor, but keep them for long stretches.

Published March 15 in the Astrophysical Journal Letters, the research expands our picture of planetary formation and could help direct the search for habitable worlds in other star systems. [Read more…] about There might be many planets with water-rich atmospheres

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  • On the quest for other Earths
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    On the quest for other EarthsIn the search for planets capable of sustaining life, an international research team with members from ETH has taken a significant step forward. As the researchers reported recently in the journal Nature Communications, they found signs of a Neptune-sized planet in the Alpha Centauri star system, a mere 4.4 light years…
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  • Earth has a hot new neighbour – and it's an astronomer's dream
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    Earth has a hot new neighbour – and it's an astronomer's dreamA newly discovered planet could be our best chance yet of studying rocky planet atmospheres outside the solar system, a new international study involving UNSW Sydney shows. The planet, called Gliese 486b (pronounced Glee-seh), is a “super-Earth”: that is, a rocky planet bigger than Earth but smaller than ice giants…
    Tags: planet, atmosphere, planets, star, rocky, earth, planet's
  • First transiting exoplanet's 'chemical fingerprint' reveals its distant birthplace
    41
    First transiting exoplanet's 'chemical fingerprint' reveals its distant birthplaceAstronomers have found evidence that the first exoplanet that was identified transiting its star could have migrated to a close orbit with its star from its original birthplace further away. Analysis of the planet's atmosphere by a team including University of Warwick scientists has identified the chemical fingerprint of a…
    Tags: atmosphere, star, planet, water, planets, university, hydrogen, atmospheres, planet's, universe
  • Carbon-rich exoplanets may be made of diamonds
    38
    Carbon-rich exoplanets may be made of diamondsAs missions like NASA's Hubble Space Telescope, TESS and Kepler continue to provide insights into the properties of exoplanets (planets around other stars), scientists are increasingly able to piece together what these planets look like, what they are made of, and if they could be habitable or even inhabited. In…
    Tags: planets, earth, water, telescope, university, scientists, planet's

Filed Under: Research, Universe Tagged With: atmosphere, earth, hydrogen, kite, magma, oceans, planet, planet's, rocky, scientists, star, telescope, telescopes, university, water

Study shows cactus pear as drought-tolerant crop for sustainable fuel and food

March 9, 2021 by Zakia

Could cactus pear become a major crop like soybeans and corn in the near future, and help provide a biofuel source, as well as a sustainable food and forage crop?

According to a recently published study, researchers from the University of Nevada, Reno believe the plant, with its high heat tolerance and low water use, may be able to provide fuel and food in places that previously haven’t been able to grow much in the way of sustainable crops.

Global climate change models predict that long-term drought events will increase in duration and intensity, resulting in both higher temperatures and lower levels of available water.

Many crops, such as rice, corn and soybeans, have an upper temperature limit, and other traditional crops, such as alfalfa, require more water than what might be available in the future. [Read more…] about Study shows cactus pear as drought-tolerant crop for sustainable fuel and food

Filed Under: Environment, Industry Tagged With: bioenergy, cactus, crop, cushman, field, food, fruit, pear, plants, study, team, unit, water

NASA scientists complete first global survey of freshwater fluctuation

March 9, 2021 by Zakia

To investigate humans’ impact on freshwater resources, scientists have now conducted the first global accounting of fluctuating water levels in Earth’s lakes and reservoirs – including ones previously too small to measure from space.

The research, published March 3 in the journal Nature, relied on NASA’s Ice, Cloud and land Elevation Satellite 2 (ICESat-2), launched in September 2018.

ICESat-2 sends 10,000 laser light pulses every second down to Earth. When reflected back to the satellite, those pulses deliver high-precision surface height measurements every 28 inches (70 centimeters) along the satellite’s orbit. [Read more…] about NASA scientists complete first global survey of freshwater fluctuation

Filed Under: Environment, Health Tagged With: cooley, global, icesat, lakes, ponds, reservoirs, scientists, uncategorized, water

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