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    Category Astronomy/Space

    Supermassive Black Holes Stifle Galaxy Growth

    April 19, 2017, Categories  Astronomy/Space

    An artist’s rendition of the galaxies Akira (right) and Tetsuo (left) in action. Akira’s gravity pulls Tetsuo’s gas into its central supermassive black hole, fuelling winds that have the power to heat Akira’s gas. Because of the action of the black hole winds, Tetsuo’s donated gas is rendered inert, preventing a new cycle of star formation in Akira. Copyright : Prime Focus Spectrograph Project

    An artist’s rendition of the galaxies Akira (right) and Tetsuo (left) in action. Akira’s gravity pulls Tetsuo’s gas into its central supermassive black hole, fuelling winds that have the power to heat Akira’s gas. Because of the action of the black hole winds, Tetsuo’s donated gas is rendered inert, preventing a new cycle of star formation in Akira. Copyright : Prime Focus Spectrograph Project

    Supermassive black hole winds in a newly discovered class of galaxies are so energetic they suppress future star formation. An international team involved in the SDSS-IV MaNGA (Sloan Digital Sky Survey-IV Mapping Nearby Galaxies at Apache Point Observatory) project is studying ~10,000 galaxies near Earth...

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    Milky Way: Hydrogen Halo lifts the Veil of our Galactic home

    April 19, 2017, Categories  Astronomy/Space

    What our Milky Way might look like to alien astronomers: This image of NGC 2683, a spiral galaxy also known as the "UFO Galaxy" due to its shape, was taken by the Hubble Space Telescope. Since trying to find out what the Milky Way looks like is a bit like trying to picture an unfamiliar house while being confined to a room inside, studies like this one help us gain a better idea of our cosmic home. Credit: ESA/Hubble & NASA

    What our Milky Way might look like to alien astronomers: This image of NGC 2683, a spiral galaxy also known as the “UFO Galaxy” due to its shape, was taken by the Hubble Space Telescope. Since trying to find out what the Milky Way looks like is a bit like trying to picture an unfamiliar house while being confined to a room inside, studies like this one help us gain a better idea of our cosmic home. Credit: ESA/Hubble & NASA

    Astronomers find missing mass in the hydrogen halo that surrounds our home galaxy. Sometimes it takes a lot of trees to see the forest. In the case of the latest discovery made by astronomers at the University of Arizona, exactly 732,225...

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    Simulated Mission to Mars: Salty diet makes you Hungry, Not Thirsty

    April 18, 2017, Categories  Astronomy/Space

    Renal urea accumulation, plasma Na+ and urea concentration, and plasma osmolality in response to experimental salt loading

    Renal urea accumulation, plasma Na+ and urea concentration, and plasma osmolality in response to experimental salt loading

    New studies show that salty food diminishes thirst while increasing hunger, due to a higher need for energy. We’ve all heard it: eating salty foods makes you thirstier. But what sounds like good nutritional advice turns out to be an old-wives’ tale. In a study carried out during a simulated mission to Mars, an international group of scientists has found exactly the opposite to be true. “Cosmonauts” who ate more salt retained more water, weren’t as thirsty, and needed more energy.

    For some reason, no one had ever carried out a long-term study to determine the relationship between the amount of salt in a person’s diet and his drinking habits...

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    Landslides on Ceres reflect Hidden ice

    April 18, 2017, Categories  Astronomy/Space

    1. Type II features are the most common of Ceres’ landslides and look similar to deposits left by avalanches on Earth. This one also looks similar to TV's Bart Simpson. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA, taken by Dawn Framing Camera 2. Type I landslides on Ceres are relatively round, large and have thick "toes" at their ends. They look similar to rock glaciers and icy landslides in Earth’s arctic. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA, taken by Dawn Framing Camera 3. Ceres' Type III features appear to form when some of the ice is melted during impact events. These landslides at low latitudes are always found coming from large-impact craters. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA, taken by Dawn Framing Camera 4. Ceres

    1. Type II features are the most common of Ceres’ landslides and look similar to deposits left by avalanches on Earth. This one also looks similar to TV’s Bart Simpson. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA, taken by Dawn Framing Camera
    2. Type I landslides on Ceres are relatively round, large and have thick “toes” at their ends. They look similar to rock glaciers and icy landslides in Earth’s arctic. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA, taken by Dawn Framing Camera
    3. Ceres’ Type III features appear to form when some of the ice is melted during impact events. These landslides at low latitudes are always found coming from large-impact craters. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA, taken by Dawn Framing Camera
    4. Ceres

    Massive landslides, similar to those found on Earth, are...

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