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Do you want a galaxy, ready to be served?
Here is the recipe you need:
Take  at least 100 billion stars and interstellar gas you desire. Add interstellar dust and dark matter, as required. Cook the mixture at a temperature of 1032K and do not forget the fundamental ingredient: gravity!
Leave it all to cool for at least a billion years… and ready! you have a galaxy that you can serve! It seems easy to create a new galaxy, but really we did not know what a galaxy was, until a very few time ago. In the past, we didn’t have powerful observation instruments as today, so galaxies seemed small regions, placed everywhere in the skies and featured by a bright vagueness, called, exactly, nebulas.

subjects dealt with in Universe

Galaxies

Have you been invited to an astronomical dinner, and you don't want to come hempty-handed? Here we have the perfect…

The birth of galaxies

If the universe shows us an expansive motion, it is natural to suppose that, if we would be able to…

Energy and matter

At present, we still don't know the real composition of our Universe! Researchers found several evidences about the existence of…

special reports

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    13 December 2020 / Space

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    27 October 2020 / Space

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    The Sun is heating up again: a new solar cycle is beginning

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    16 September 2020 / Space

    Is there life on Venus?

    We call them "Martians" because, in science fiction, Mars has always been the natural home of extraterrestrials. In fact, of…

    29 August 2019 / Space

    The Fermi paradox

    In our galaxy, the Milky Way, there are over 100 billion stars. Around us, we have discovered 100 billion more…

  • 14 April 2022 / Space

    From the Moon to Jupiter via Mars: Space exploration in 2022

    The year 2022 will also be full of new space missions: from the Moon to Mars, to the moons of…

    20 March 2022 / Space

    Spring is back

    While the temperatures of the last days of winter and the first shoots and buds on the trees had already…

  • 22 January 2021 / Space

    Are we children of stock cubes?

    In primary school, we learned that life began in the "primordial soup", that is, in the warm ocean that covered…

    20 December 2020 / Space

    Twinkle twinkle little star

    The Star of the Magi competes with the Angel for the place of honour on the ridge-pole of the stable.…

  • 13 December 2020 / Space

    St. Lucy’s night: a night of shooting stars

    In Italy, St. Lucy’s night  is known traditionally as “the shortest night of the year”, but due to the passage…

    27 October 2020 / Space

    Wet moon, lucky moon

    On Monday 26 October 2020, NASA revealed a sensational discovery about our Moon: there is definitely water, also on its…

  • 2 October 2020 / Space

    The Sun is heating up again: a new solar cycle is beginning

    Summer has just ended but the sun has yet to start to "warm up". Our star is a huge furnace…

    16 September 2020 / Space

    Is there life on Venus?

    We call them "Martians" because, in science fiction, Mars has always been the natural home of extraterrestrials. In fact, of…

  • 29 August 2019 / Space

    The Fermi paradox

    In our galaxy, the Milky Way, there are over 100 billion stars. Around us, we have discovered 100 billion more…

  • 14 April 2022 / Space

    From the Moon to Jupiter via Mars: Space exploration in 2022

    The year 2022 will also be full of new space missions: from the Moon to Mars, to the moons of…

  • 20 March 2022 / Space

    Spring is back

    While the temperatures of the last days of winter and the first shoots and buds on the trees had already…

  • 22 January 2021 / Space

    Are we children of stock cubes?

    In primary school, we learned that life began in the "primordial soup", that is, in the warm ocean that covered…

  • 20 December 2020 / Space

    Twinkle twinkle little star

    The Star of the Magi competes with the Angel for the place of honour on the ridge-pole of the stable.…

  • 13 December 2020 / Space

    St. Lucy’s night: a night of shooting stars

    In Italy, St. Lucy’s night  is known traditionally as “the shortest night of the year”, but due to the passage…

  • 27 October 2020 / Space

    Wet moon, lucky moon

    On Monday 26 October 2020, NASA revealed a sensational discovery about our Moon: there is definitely water, also on its…

  • 2 October 2020 / Space

    The Sun is heating up again: a new solar cycle is beginning

    Summer has just ended but the sun has yet to start to "warm up". Our star is a huge furnace…

  • 16 September 2020 / Space

    Is there life on Venus?

    We call them "Martians" because, in science fiction, Mars has always been the natural home of extraterrestrials. In fact, of…

  • 29 August 2019 / Space

    The Fermi paradox

    In our galaxy, the Milky Way, there are over 100 billion stars. Around us, we have discovered 100 billion more…

from the Multimedia section

  • space

    Virgo cluster

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    The Hercules Globular Cluster (M13)

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    Mice Galaxies

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curiosities

 
 
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