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    Light Exposure during Sleep may Increase Insulin Resistance

    June 5, 2018, Categories  Health/Medical, Biology/Biotechnology

    Image result for Light Exposure during Sleep may Increase Insulin Resistance
     
    Chronic overnight light exposure could have long-term effects on metabolic function. According to preliminary results from a new study, nighttime light exposure during sleep may affect metabolic function. The aim of this study was to test the hypothesis that light exposure at night during sleep adversely impacts metabolic outcomes.
     
    “Our preliminary findings show that a single night of light exposure during sleep acutely impacts measures of insulin resistance,” said lead author Ivy Cheung Mason, PhD, who was a postdoctoral fellow at Northwestern University Feinberg School of Medicine when this study was conducted. “Light exposure overnight during sleep has been shown to disrupt sleep, but these data indicate that it may also have the potential to influence metabolism.”
     
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    Collective Gravity, not Planet Nine, may explain the Orbits of ‘detached objects’

    June 5, 2018, Categories  Uncategorized

    An artist's rendering of Sedna, which looks reddish in color in telescope images. (Credit: NASA/JPL-Caltech)

    An artist’s rendering of Sedna, which looks reddish in color in telescope images. (Credit: NASA/JPL-Caltech)

     
    Bumper car-like interactions at the edges of our solar system – and not a mysterious ninth planet – may explain the dynamics of strange bodies called “detached objects,” according to a new study. CU Boulder Assistant Professor Ann-Marie Madigan and a team of researchers have offered up a new theory for the existence of planetary oddities like Sedna. This minor planet orbits Earth’s sun at a distance of 8 billion miles but appears separated from the rest of the solar system.
     
    One theory for its unusual dynamics is that an as-of-yet-unseen ninth planet beyond Neptune may have disturbed the orbits of Sedna and other detached objects...
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    ALMA and VLT find too many Massive Stars in a Starburst galaxies, near and far

    June 5, 2018, Categories  Astronomy/Space

    This artist's impression shows a dusty galaxy in the distant Universe that is forming stars at a rate much higher than in our Milky Way. New ALMA observations have allowed scientists to lift the veil of dust and see what was previously inaccessible -- that such starburst galaxies have an excess of massive stars as compared to more peaceful galaxies. Credit: ESO/M. Kornmesser

    This artist’s impression shows a dusty galaxy in the distant Universe that is forming stars at a rate much higher than in our Milky Way. New ALMA observations have allowed scientists to lift the veil of dust and see what was previously inaccessible — that such starburst galaxies have an excess of massive stars as compared to more peaceful galaxies. Credit: ESO/M. Kornmesser

    Astronomers using ALMA and the VLT have discovered that both starburst galaxies in the early Universe and a star-forming region in a nearby galaxy contain a much higher proportion of massive stars than is found in more peaceful galaxies. These findings challenge current ideas about how galaxies evolved, changing our understanding of cosmic star-formation history and the build up of chemical elements.

     
    Zhang and his...
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    Atomic Clock Comparison Confirms Key assumptions of ‘Einstein’s Elevator’

    June 5, 2018, Categories  Astronomy/Space

    This image, taken with the Wide Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS), both installed on the NASA/ESA Hubble Space Telescope, shows the peculiar galaxy NGC 3256. The galaxy is about 100 million light-years from Earth and is the result of a past galactic merger, which created its distorted appearance. As such, NGC 3256 provides an ideal target to investigate starbursts that have been triggered by galaxy mergers. Credit: ESA/Hubble, NASA

    This image, taken with the Wide Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS), both installed on the NASA/ESA Hubble Space Telescope, shows the peculiar galaxy NGC 3256. The galaxy is about 100 million light-years from Earth and is the result of a past galactic merger, which created its distorted appearance. As such, NGC 3256 provides an ideal target to investigate starbursts that have been triggered by galaxy mergers. Credit: ESA/Hubble, NASA

     
    By comparing different types of remote atomic clocks, physicists at the National Institute of Standards and Technology (NIST) have performed the most accurate test ever of a key principle underlying Albert Einstein’s famous theory of general relativity, which describes how gravity relates to space and time...
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