Showing 20 articles starting at article 621

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Thermodynamics, Space: General

Return to the site home page

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Space Space: Cosmology Space: General
Published

New recipes for origin of life may point way to distant, inhabited planets      (via sciencedaily.com)     Original source 

Life on a faraway planet -- if it's out there -- might not look anything like life on Earth. But there are only so many chemical ingredients in the universe's pantry, and only so many ways to mix them. Scientists have now exploited those limitations to write a cookbook of hundreds of chemical recipes with the potential to give rise to life. Their ingredient list could focus the search for life elsewhere in the universe by pointing out the most likely conditions -- planetary versions of mixing techniques, oven temperatures and baking times -- for the recipes to come together.

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

New findings suggest Moon may have less water than previously thought      (via sciencedaily.com) 

A team recently calculated that most of the Moon's permanently shadowed regions (PSRs) are at most around 3.4 billion years old and can contain relatively young deposits of water ice. Water resources are considered key for sustainable exploration of the Moon and beyond, but these findings suggest that current estimates for cold-trapped ices are too high.

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

Engineered compound shows promise in preventing bone loss in space      (via sciencedaily.com)     Original source 

Mice treated aboard the International Space Station showed significantly reduced bone loss.

Chemistry: Biochemistry Chemistry: Thermodynamics
Published

Atomic layer deposition route to scalable, electronic-grade van der Waals Te thin films      (via sciencedaily.com) 

A research team has made a significant breakthrough in thin film deposition technology.

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

Brilliant galaxies of early universe      (via sciencedaily.com) 

Scientists have used data from the James Webb Space Telescope (JWST) as part of the Cosmic Evolution Early Release Science (CEERS) Survey to change the way we think about the universe and its distant galaxies. Astronomers authored a paper confirming very bright galaxies in the early universe, while also disproving the identification of what would have been the most distant galaxy ever found.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Snaps supersonic outflow of young star      (via sciencedaily.com) 

Herbig-Haro (HH) objects are luminous regions surrounding newborn stars, formed when stellar winds or jets of gas spewing from these newborn stars form shock waves colliding with nearby gas and dust at high speeds. This image of HH 211 from NASA's James Webb Space Telescope reveals an outflow from a Class 0 protostar, an infantile analog of our Sun when it was no more than a few tens of thousands of years old and with a mass only 8% of the present-day Sun (it will eventually grow into a star like the Sun).

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: General Space: Astrophysics Space: Cosmology Space: Exploration Space: General
Published

Carbon atoms coming together in space      (via sciencedaily.com)     Original source 

Lab-based studies reveal how carbon atoms diffuse on the surface of interstellar ice grains to form complex organic compounds, crucial to reveal the chemical complexity in the universe.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Electrons from Earth may be forming water on the Moon      (via sciencedaily.com) 

Planetary scientists have discovered that high energy electrons in Earth's plasma sheet are contributing to weathering processes on the Moon's surface and, importantly, the electrons may have aided the formation of water on the lunar surface.

Chemistry: General Chemistry: Thermodynamics Energy: Technology Environmental: General Environmental: Water Geoscience: Geochemistry
Published

Researchers make strides in harnessing low-grade heat for efficient energy conversion      (via sciencedaily.com) 

A research team has achieved significant breakthroughs in harnessing low-grade heat sources (<100 °C) for efficient energy conversion.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

Matter comprises of 31% of the total amount of matter and energy in the universe      (via sciencedaily.com) 

One of the most interesting and important questions in cosmology is, 'How much matter exists in the universe?' An international team has now succeeded in measuring the total amount of matter for the second time. The team determined that matter makes up 31% of the total amount of matter and energy in the universe, with the remainder consisting of dark energy.

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

Dark matter halos measured around ancient quasars      (via sciencedaily.com) 

At the center of every galaxy is a supermassive black hole. Beyond a certain size, these become active, emitting huge amounts of radiation, and are then called quasars. It is thought these are activated by the presence of massive dark matter halos (DMH) surrounding the galaxy, directing matter towards the center, feeding the black hole. A team has now surveyed hundreds of ancient quasars and found this behavior is very consistent throughout history. This is surprising, as many large-scale processes show variation throughout the life of the universe, so the mechanism of quasar activation could have implications for the evolution of the entire universe.

Chemistry: Biochemistry Chemistry: General Chemistry: Thermodynamics Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather Offbeat: Earth and Climate Offbeat: General
Published

Hot summer air turns into drinking water with new gel device      (via sciencedaily.com) 

Researchers have focused on the moisture present in the air as a potential source of drinking water for drought-stressed populations. They reached a significant breakthrough in their efforts to create drinkable water out of thin air: a molecularly engineered hydrogel that can create clean water using just the energy from sunlight.

Biology: Microbiology Chemistry: Thermodynamics
Published

You can leave your gloves on: New material burns viruses, safe for skin      (via sciencedaily.com) 

A new material that packs deadly heat for viruses on its outer surface while staying cool on the reverse side could be used to make sustainable, multiuse personal protective equipment.

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

The universe caught suppressing cosmic structure growth      (via sciencedaily.com) 

As the universe evolves, scientists expect large cosmic structures to grow at a certain rate: dense regions such as galaxy clusters would grow denser, while the void of space would grow emptier.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Water world? Methane, carbon dioxide in atmosphere of massive exoplanet      (via sciencedaily.com) 

A new investigation with NASA's James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide. Webb's discovery adds to recent studies suggesting that K2-18 b could be a Hycean exoplanet, one which has the potential to possess a hydrogen-rich atmosphere and a water ocean-covered surface.

Space: Astrophysics Space: General Space: Structures and Features Space: The Solar System
Published

New insights into neutrino interactions      (via sciencedaily.com)     Original source 

Elusive fundamental particles called neutrinos are predicted to interact unexpectedly with photons under extreme conditions.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Study hints at the existence of the closest black holes to Earth in the Hyades star cluster      (via sciencedaily.com) 

A new article hints at the existence of several black holes in the Hyades cluster -- the closest open cluster to our solar system -- which would make them the closest black holes to Earth ever detected.

Biology: Microbiology Space: Exploration Space: General
Published

How to prevent biofilms in space      (via sciencedaily.com)     Original source 

In experiments aboard the International Space Station, a surface treatment developed engineers prevented the growth of microbial biofims. These films can damage equipment and potentially cause illness.