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Categories: Energy: Alternative Fuels, Space: Cosmology
Published A supernova in distant space allows us to understand the origin of the elements in the universe
(via sciencedaily.com) A supernova is a stellar explosion, which occurs when the lives of some really massive stars come to an end. In this violent epilogue, the star expels the material from its outer layers by means of a shock wave, allowing us to see the various elements it was composed of.
Published Red-supergiant supernova: Secrets of an earlier Universe
(via sciencedaily.com) Original source An international research team has measured the size of a star dating back more than 11 billion years ago using images that show the evolution of the star exploding and cooling. The research could help scientists learn more about the early Universe.
Published Ultrathin solar cells promise improved satellite performance
(via sciencedaily.com) As low Earth orbit becomes more cluttered, it becomes increasingly necessary to use middle Earth orbits, and radiation-tolerant cell designs will be needed. Making photovoltaics thinner should increase their longevity because the charge carriers have less far to go during their shortened lifetimes. Scientists propose a radiation-tolerant photovoltaic cell design that features an ultrathin layer of light-absorbing material. Compared to thicker cells, nearly 3.5 times less cover glass is needed for the ultra-thin cells to deliver the same amount of power after 20 years of operation.
Published Oldest planetary debris in our galaxy found from new study
(via sciencedaily.com) Original source Astronomers have identified the oldest star in our galaxy that is accreting debris from orbiting planetesimals, making it one of the oldest rocky and icy planetary systems discovered in the Milky Way.
Published First glimpse of what gravity looks like on cosmological scales
(via sciencedaily.com) Scientists have reconstructed gravity to find a more robust way of understanding the cosmos.
Published IceCube neutrinos give us first glimpse into the inner depths of an active galaxy
(via sciencedaily.com) Scientists have found evidence of high-energy neutrino emission from NGC 1068, also known as Messier 77, an active galaxy in the constellation Cetus and one of the most familiar and well-studied galaxies to date.
Published Shining new light on solar cell development
(via sciencedaily.com) An increase in the efficiency of solar panels may be on the horizon, as new research reduces their current limitations.
Published Uncovering the massive quantum mysteries of black holes
(via sciencedaily.com) Bizarre quantum properties of black holes -- including their mind-bending ability to have different masses simultaneously -- have been confirmed by physicists.
Published New tech solves longstanding challenges for self-healing materials
(via sciencedaily.com) Engineering researchers have developed a new self-healing composite that allows structures to repair themselves in place, without having to be removed from service. This latest technology resolves two longstanding challenges for self-healing materials, and can significantly extend the lifespan of structural components such as wind-turbine blades and aircraft wings.
Published Rare Earth elements synthesis confirmed in neutron star mergers
(via sciencedaily.com) When two neutron stars merge, the resultant explosion forms heavy elements -- many of which make up our Universe. A new study has identified the specific rare-earth elements produced in a neutron star merger.
Published Revolutionary technique to generate hydrogen more efficiently from water
(via sciencedaily.com) Researchers have made a serendipitous scientific discovery that could potentially revolutionize the way water is broken down to release hydrogen gas -- an element crucial to many industrial processes. The team found that light can trigger a new mechanism in a catalytic material used extensively in water electrolysis, where water is broken down into hydrogen and oxygen. The result is a more energy-efficient method of obtaining hydrogen.
Published One-stop hydrogen shop: Reducing the cost of a future energy carrier
(via sciencedaily.com) Researchers have demonstrated a proof-of-concept for a novel molecular hydrogen production method that bypasses the need for expensive purification steps. They developed a system where hydrogen is separated and stored in liquid organic hydrogen carriers by catalysis of triaryl boranes in one seamless process. The results of this work will help facilitate the transition to a hydrogen-based economy that is necessary for a more sustainable future.
Published Global collaboration saved countries $67 billion in solar panel production costs
(via sciencedaily.com) A new study quantifies for the first time the historical and future cost savings to the solar industry from globalized supply chains.
Published Nano-sized islands open possibilities for application of single-atom catalysts
(via sciencedaily.com) A new method to anchor single atoms of platinum-group metals on nanometer-sized islands allows for efficiently using these expensive metals as catalysts for a wide variety of applications. Researchers showed that platinum atoms could be confined on small cerium-oxide islands within a porous material to catalyze reactions without sticking to each other, which has been a major stumbling block for their use.
Published Dye-sensitized solar cells achieve a new record
(via sciencedaily.com) Scientists have increased the power conversion efficiency of dye-sensitized solar cells beyond 15% in direct sunlight and 30% in ambient light conditions.
Published Cosmic rays drive galaxy's winds
(via sciencedaily.com) VLA observations revealed that cosmic rays can play an important role in driving winds that rob galaxies of the gas needed to form new stars. This mechanism may be an important factor in galactic evolution, particularly at earlier times in the history of the universe.
Published Tandem solar cells with perovskite: Nanostructures help in many ways
(via sciencedaily.com) By the end of 2021, scientists had presented perovskite silicon tandem solar cells with an efficiency close to 30 percent. This value was a world record for eight months, a long time for this hotly contested field of research. Scientists now describe how they achieved this record value with nanooptical structuring and reflective coatings.
Published Using carbon-carbon clumping to detect the signature of biotic hydrocarbons
(via sciencedaily.com) The mystery of the origin of hydrocarbons found in extraterrestrial environment may finally be resolved, thanks to a technique based on a 13C-13C abundance analysis. By measuring the abundance of clumped 13C-13C isotope in the hydrocarbons, it can be inferred if a hydrocarbon was produced via biological processes. This could open doors to distinguishing such hydrocarbons from abiotic ones, aiding our search for extra-terrestrial life.
Published Improving light absorption in perovskite/Si tandem solar cells
(via sciencedaily.com) Engineers have achieved a power conversion efficiency of 23.50% in a perovskite-silicon tandem solar cell built with a special textured anti-reflective coating (ARC) polymeric film.
Published Unprecedented glimpse of merging galaxies
(via sciencedaily.com) Original source Using the James Webb Space Telescope to look back in time at the early universe, astronomers discovered a surprise: a cluster of galaxies merging together around a rare red quasar within a massive black hole. The findings offer an unprecedented opportunity to observe how billions of years ago galaxies coalesced into the modern universe.