Measuring the Universe with Star-Shattering Explosions

Conceptual image of this research: using Gamma Ray Bursts to determine distance in space. (Credit: NAOJ)

An international team of 23 researchers led by Maria Dainotti, Assistant Professor at the National Astronomical Observatory of Japan (NAOJ), has analyzed archive data for powerful cosmic explosions from the deaths of stars and found a new way to measure distances in the distant Universe.

With no landmarks in space, it is very difficult to get a sense of depth. One technique astronomers use is to look for “standard candles,” objects or events where the underlying physics dictate that the absolute brightness (what you would see if you were right next to it) is always the same...

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iTEARS could help Diagnose Diseases by Isolating Biomarkers in Tears

Discovering the Secret of Diseases by Incorporated Tear Exosomes Analysis via Rapid-Isolation System: iTEARS

Going to the doctor might make you want to cry, and according to a new study, doctors could someday put those tears to good use. In ACS Nano, researchers report a nanomembrane system that harvests and purifies tiny blobs called exosomes from tears, allowing researchers to quickly analyze them for disease biomarkers. Dubbed iTEARS, the platform could enable more efficient and less invasive molecular diagnoses for many diseases and conditions, without relying solely on symptoms.

Diagnosing diseases often hinges on assessing a patient’s symptoms, which can be unobservable at early stages, or unreliably reported...

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All-in-one Solar-powered Tower makes Carbon-Neutral Jet Fuel

•Entire process chain from H2O and CO2 to solar kerosene realized in a solar tower
•50-kW solar reactor demonstrated for ceria-based thermochemical redox splitting
•Consecutive redox cycling produced syngas suitable for FT synthesis
•4.1% solar-to-syngas energy efficiency achieved without implementing heat recovery

Researchers have designed a fuel production system that uses water, carbon dioxide (CO2), and sunlight to produce aviation fuel. They have implemented the system in the field, and the design, publishing July 20 in the journal Joule, could help the aviation industry become carbon neutral.

“We are the first to demonstrate the entire thermochemical process chain from water and CO2 to kerosene in a fully-integrated solar tower system,” says Aldo Steinfeld (@solarfuels), ...

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Asteroid Impacts create Diamond Materials with exceptionally Complex Structures

an asteroid or a meteorite flies in space, against the background of nebulae and stars

Shockwaves caused by asteroids colliding with Earth create materials with a range of complex carbon structures, which could be used for advancing future engineering applications, according to an international study led by UCL and Hungarian scientists.

Published today in Proceedings of the National Academy of Sciences, the team of researchers has found that diamonds formed during a high-energy shockwave from an asteroid collision around 50,000 years ago have unique and exceptional properties, caused by the short-term high temperatures and extreme pressure.

The researchers say that these structures can be targeted for advanced mechanical and electronic applications, giving us the ability to design materials that are not only ultrahard but also malleable with tunable electronic pro...

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