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Greta van der Rol
  • Science fact

    Wishing and hoping doesn’t make it real

    ByGreta 25 July 201527 October 2025

    Look, I’m a space nut. It says so on the header up there. So when NASA announced the discovery of “Earth 2.0” I was as excited as the next space nut. But let’s put this into context, people. What do we really KNOW about this planet, as FACT? It’s in the constellation of Cygnus, 1,400…

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  • Science fiction

    Star Wars ISD – a good design, or not so hot?

    ByGreta 2 March 201327 October 2025

    Oh, man. The majestic Imperial Star Destroyer.  I’ve said before it was one of the reasons I fell in love with Star Wars. Here it is in all its glory. Bristling with weapons, a space-going aircraft carrier cum assault ship. According to Star Wars: The New Essential Guide to Vehicles and Vessels, the 1.6km long…

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    Science fact

    Our Moon Is Weird, and the Science Behind It Is Even Better

    ByGreta 29 November 20126 December 2025

    A lunar eclipse happened in my part of the world on 28th November, hard on the cosmic heels of a solar eclipse earlier in the month. As it turned out, the penumbral eclipse was a huge disappointment. No shadow across the moon’s disc, not even a reddening of the light. So the cirrus cloud partially…

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    Science fact

    What would you weigh on an exoplanet?

    ByGreta 25 November 20124 November 2025

    I was reading an article from somebody, all enthusiastic about the exo-planets the Kepler probe keeps finding. They’re all many times larger than planet Earth even if they’re in the ‘Goldilocks’ zone. You know the one – not too close, not too far, just right. That is, a planet neither too close to its primary…

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    Science fact | Science fiction

    Humans are such fragile entities

    ByGreta 27 October 201227 October 2025

    The more I read about the strangeness of our universe, the more I wonder if we, humanity, will ever colonise other planets. There’s not much chance we’ll settle on a diamond planet and I have to wonder how we’d go on many of the ‘earthlike’ planets already pinpointed. We are such fragile entities, we humans….

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  • Life and things | Science fact

    An unforgettable milestone in the journey of life

    ByGreta 26 August 201227 October 2025

    I woke this morning to the news that Neil Armstrong had passed away. To me, that means two things; the end of an era and that unenviable feeling of being old. The things I’ve seen, the things that are a part of the parade of my life. On Twitter I learned a friend’s husband had…

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  • Life and things | Science fiction

    Star Wars Obsession

    ByGreta 14 October 201127 October 2025

    Reading somebody’s blog recently I was reminded about my own obsession with the Star Wars universe early in the life of the series. SW and The Empire Strikes Back didn’t have the benefit of digital enhancement. The special effects guys made their props in the old fashioned way – with models and blue-screen photography. The…

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    Science fact | Science fiction

    Planet-hopping might not be so silly

    ByGreta 2 April 201127 October 2025

    My new science fiction book includes a certain amount of planet-hopping. There’ll be some sneering and lip-curling over this. But don’t be in too much of a hurry to point a derisive finger.

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  • Home
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    • Ptorix Empire stories
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      • The history
      • Why did I write the book?
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