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    Category Astronomy/Space

    New approach refines the Hubble’s Constant and Age of Universe

    July 27, 2020, Categories  Astronomy/Space

    Galaxy NGC4414
    A galaxy known as NGC4414, 62.3 million light years from Earth, was one of 50 galaxies used to recalculate the Hubble constant.

    Using known distances of 50 galaxies from Earth to refine calculations in Hubble’s constant, a research team led by a University of Oregon astronomer estimates the age of the universe at 12.6 billion years.

    Approaches to date the Big Bang, which gave birth to the universe, rely on mathematics and computational modeling, using distance estimates of the oldest stars, the behavior of galaxies and the rate of the universe’s expansion. The idea is to compute how long it would take all objects to return to the beginning.

    A key calculation for dating is the Hubble’s constant, named after Edwin Hubble who first calculated the universe’s expansion rate in 1929...

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    Hubble sees Summertime on Saturn

    July 25, 2020, Categories  Astronomy/Space

    NASA’s Hubble Space Telescope captured this image of Saturn on July 4, 2020. Two of Saturn’s icy moons are clearly visible in this exposure: Mimas at right, and Enceladus at bottom. This image is taken as part of the Outer Planets Atmospheres Legacy (OPAL) project. OPAL is helping scientists understand the atmospheric dynamics and evolution of our solar system’s gas giant planets. In Saturn’s case, astronomers continue tracking shifting weather patterns and storms.
    Credits: NASA, ESA, A. Simon (Goddard Space Flight Center), M.H. Wong (University of California, Berkeley), and the OPAL Team

    Saturn is truly the lord of the rings in this latest snapshot from NASA’s Hubble Space Telescope, taken on July 4, 2020, when the opulent giant world was 839 million miles from Earth...

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    First ever image of a Multi-planet system around a Sun-like Star captured by ESO telescope

    July 24, 2020, Categories  Astronomy/Space

    The European Southern Observatory’s Very Large Telescope (ESO’s VLT) has taken the first ever image of a young, Sun-like star accompanied by two giant exoplanets. Images of systems with multiple exoplanets are extremely rare, and — until now — astronomers had never directly observed more than one planet orbiting a star similar to the Sun. The observations can help astronomers understand how planets formed and evolved around our own Sun.

    The European Southern Observatory’s Very Large Telescope (ESO’s VLT) has taken the first ever image of a young, Sun-like star accompanied by two giant exoplanets. Images of systems with multiple exoplanets are extremely rare, and – until now – astronomers had never directly observed more than one planet orbiting a star similar to the Sun...

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    New Cosmic Magnetic Field structures discovered in Galaxy NGC 4217

    July 23, 2020, Categories  Astronomy/Space

    The spiral galaxy NGC 4217 has a huge magnetic field that is shown here as green lines. The data for this visualisation were recorded with the radio telescope Karl G. Jansky Very Large Array (VLA) of the National Science Foundation. The image of the galaxy shown from the side is taken from data from the Sloan Digital Sky Survey and Kitt Peak National Observatory.

    Superbubbles, giant loops and X-shaped magnetic field structures – this galaxy boasts a veritable wealth of shapes. Spiral galaxies such as our Milky Way can have sprawling magnetic fields. There are various theories about their formation, but so far the process is not well understood...

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