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Categories: Engineering: Graphene, Space: Cosmology
Published Characterizing the earliest galaxies in the universe -- only 200 million years after the Big Bang
(via sciencedaily.com) An international team of astrophysicists has managed to statistically characterize the first galaxies in the Universe, which formed only 200 million years after the Big Bang.
Published Palm e-tattoo can tell when you're stressed out
(via sciencedaily.com) Researchers have applied emerging electronic tattoo (e-tattoo) technology to the tricky task of measuring stress levels by attaching a device to people's palms.
Published New analysis approach could help boost sensitivity of large telescopes
(via sciencedaily.com) Researchers detail an analysis method that could improve telescopes at the Simons Observatory by evaluating their performance before installation. This is the first time the optical performance of a telescope has been confirmed prior to its deployment.
Published New carbon nanotube-based foam promises superior protection against concussions
(via sciencedaily.com) A lightweight, ultra-shock-absorbing foam made from carbon nanotubes is so good at absorbing and dissipating the energy of an impact, it could vastly improve helmets and prevent concussions and other traumatic brain injuries.
Published Physicists observe wormhole dynamics using a quantum computer
(via sciencedaily.com) Original source Scientists have developed a quantum experiment that allows them to study the dynamics, or behavior, of a special kind of theoretical wormhole.
Published Non-detection of key signal allows astronomers to determine what the first galaxies were -- and weren't -- like
(via sciencedaily.com) Researchers have been able to make some key determinations about the first galaxies to exist, in one of the first astrophysical studies of the period in the early Universe when the first stars and galaxies formed, known as the cosmic dawn.
Published Astronomers observe intra-group light -- the elusive glow between distant galaxies
(via sciencedaily.com) Pioneering a new technique, researchers have peered into the extremely faint light that exists between galaxies to describe the history and state of orphan stars.
Published Short gamma-ray bursts traced farther into distant universe
(via sciencedaily.com) Astronomers have developed the most extensive inventory to date of the galaxies where short gamma-ray bursts (SGRBs) originate. Using several highly sensitive instruments and sophisticated galaxy modeling, the researchers pinpointed the galactic homes of 84 SGRBs and probed the characteristics of 69 of the identified host galaxies.
Published Asphaltene changed into graphene for composites
(via sciencedaily.com) The flash Joule heating process turns asphaltenes, a byproduct of crude oil production, into graphene for use in composite materials.
Published Black holes in eccentric orbit
(via sciencedaily.com) A research team has reconstructed the origin of an unusual gravitational wave signal. The signal GW190521 may result from the merger of two massive black holes that captured each other in their gravitational field and then collided while spinning around each other in a rapid, eccentric motion.
Published NASA's Webb draws back curtain on universe's early galaxies
(via sciencedaily.com) A few days after officially starting science operations, NASA's James Webb Space Telescope propelled astronomers into a realm of early galaxies, previously hidden beyond the grasp of all other telescopes until now.
Published 2400 new eyes on the sky to see cosmic rainbows
(via sciencedaily.com) The Subaru Telescope successfully demonstrated engineering first light with a new instrument that will use about 2400 fiberoptic cables to capture the light from heavenly objects. Full operation is scheduled to start around 2024. The ability to observe thousands of objects simultaneously will provide unprecedented amounts of data to fuel Big Data Astronomy in the coming decade.
Published Researchers learn to engineer growth of crystalline materials consisting of nanometer-size gold clusters
(via sciencedaily.com) First insights into engineering crystal growth by atomically precise metal nanoclusters have been achieved in a new study.
Published Hubble captures three faces of evolving supernova in early universe
(via sciencedaily.com) Three different moments in a far-off supernova explosion were captured in a single snapshot by NASA's Hubble Space Telescope. The star exploded more than 11 billion years ago, when the universe was less than a fifth of its current age of 13.8 billion years.
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 Growing pure nanotubes is a stretch, but possible
(via sciencedaily.com) Researchers have published a new theory for making batches of carbon nanotubes with a single, desired chirality. Their method could simplify purification of nanotubes that are all metallic or all semiconductors.
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 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 New study introduces the best graphite films
(via sciencedaily.com) A recent study has proposed a strategy to synthesize single-crystalline graphite films orders of magnitude large, up to inch scale.