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    Found: A New form of DNA in our cells

    April 23, 2018, Categories  Health/Medical, Biology/Biotechnology

    Artist's impression of the i-motif DNA structure inside cells (strands with green bars), along with the antibody-based tool used to detect it (Y-shaped yellow structure) Chris Hammang

    Artist’s impression of the i-motif DNA structure inside cells (strands with green bars), along with the antibody-based tool used to detect it (Y-shaped yellow structure) Chris Hammang

    Scientists have tracked down an elusive ‘tangled knot’ of DNA. In a world first, Australian researchers have identified a new DNA structure – called the i-motif – inside cells. A twisted ‘knot’ of DNA, the i-motif has never before been directly seen inside living cells. The new findings, from the Garvan Institute of Medical Research, are published today in the leading journal Nature Chemistry.

    Deep inside the cells in our body lies our DNA. The information in the DNA code – all 6 billion A, C, G and T letters – provides precise instructions for how our bodies are built, and how they work...

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    Face Recognition for Galaxies: Artificial Intelligence brings new tools to astronomy

    April 23, 2018, Categories  Astronomy/Space

    A 'deep learning' algorithm trained on images from cosmological simulations is surprisingly successful at classifying real galaxies in Hubble images. Top row: High-resolution images from a computer simulation of a young galaxy going through three phases of evolution (before, during, and after the "blue nugget" phase). Middle row: The same images from the computer simulation of a young galaxy in three phases of evolution as it would appear if observed by the Hubble Space Telescope. Bottom row: Hubble Space Telescope images of distant young galaxies classified by a deep learning algorithm trained to recognize the three phases of galaxy evolution. The width of each image is approximately 100,000 light years. Credit: Image credits for top two rows: Greg Snyder, Space Telescope Science Institute, and Marc Huertas-Company, Paris Observatory. For bottom row: The HST images are from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS).

    A ‘deep learning’ algorithm trained on images from cosmological simulations is surprisingly successful at classifying real galaxies in Hubble images. Top row: High-resolution images from a computer simulation of a young galaxy going through three phases of evolution (before, during, and after the “blue nugget” phase). Middle row: The same images from the computer simulation of a young galaxy in three phases of evolution as it would appear if observed by the Hubble Space Telescope. Bottom row: Hubble Space Telescope images of distant young galaxies classified by a deep learning algorithm trained to recognize the three phases of galaxy evolution. The width of each image is approximately 100,000 light years...

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    Galaxies grow Bigger and Puffier as they Age

    April 23, 2018, Categories  Astronomy/Space

    This is a long-exposure image from NASA's Hubble Space Telescope of massive galaxy cluster Abell 2744. It shows some of the faintest and youngest galaxies detected in space. Credit: NASA/ESA/STScI

    This is a long-exposure image from NASA’s Hubble Space Telescope of massive galaxy cluster Abell 2744. It shows some of the faintest and youngest galaxies detected in space. Credit: NASA/ESA/STScI

    A new international study involving ANU and Sydney University has found that galaxies grow bigger and puffier as they age. Professor Matthew Colless from ANU said that stars in a young galaxy moved in an orderly way around the galaxy’s disk, much like cars around a racetrack...

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    Martian Moons model indicates Formation following Large Impact

    April 23, 2018, Categories  Astronomy/Space

    This composite image compares how big the moons of Mars appear, as seen from the surface of the Red Planet, in relation to the size that our Moon appears from Earth’s surface. While Earth’s Moon is 100 times bigger than the larger Martian moon Phobos, the Martian moons orbit much closer to their planet, making them appear relatively larger in the sky. Deimos, at far left, and Phobos, beside it, are shown together as photographed by NASA’s Mars rover Curiosity on Aug. 1, 2013. Credit: Image Courtesy of NASA/JPL-Caltech/Malin Space Science Systems/Texas A&M Univ.

    This composite image compares how big the moons of Mars appear, as seen from the surface of the Red Planet, in relation to the size that our Moon appears from Earth’s surface. While Earth’s Moon is 100 times bigger than the larger Martian moon Phobos, the Martian moons orbit much closer to their planet, making them appear relatively larger in the sky. Deimos, at far left, and Phobos, beside it, are shown together as photographed by NASA’s Mars rover Curiosity on Aug. 1, 2013. Credit: Image Courtesy of NASA/JPL-Caltech/Malin Space Science Systems/Texas A&M Univ.

    New models predict that Phobos, Deimos compositions will be similar to Mars but dry...

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