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FreeAstroScience logo with a glowing star, open book, and Earth on a space-themed circular badge with the tagline Igniting Curiosity for free astronomy science education

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When lakes lose their winter pulse: Climate change and the hidden Nitrogen story

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Galaxies shaped by cosmic location just 1.2 billion years after the Big Bang

May 27, 2026May 27, 2026

Mercury’s polar water ice: new models suggest a larger, slower impact source

May 26, 2026May 26, 2026

New Cell Therapy Offers Hope for Advanced Liver Disease Patients

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Math

    What is the game theory?

    Gerd DaniFebruary 19, 2022March 28, 20260

    Game theory is the study of mathematical models of strategic interactions among people that always aims to perform optimal actions…

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      What is the Monty Hall problem?

      Gerd DaniFebruary 1, 2022March 28, 20260

      Monty Hall problem is a brain teaser, in the form of a probability puzzle. The problem was originally posed (and…

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        What are the Aleph numbers?

        Gerd DaniJanuary 26, 2022March 28, 20260

        In the realm of mathematics, Aleph numbers play a significant role, serving as a series of numbers that denote the…

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          What is the Knot theory?

          Gerd DaniJanuary 18, 2022March 28, 20260

          Knot theory studies the mathematical knots. While inspired by knots which appear in daily life, such as those in shoelaces…

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            What is a multifractal systeem?

            Gerd DaniJanuary 12, 2022March 28, 20260

            Multifractal system is a generalization of a fractal system in which a single exponent (the fractal dimension) is not enough…

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              Space in mathematics

              Gerd DaniDecember 22, 2021March 28, 20260

              Space is a set with some added structure. While modern mathematics uses many types of spaces, such as Euclidean spaces,…

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                What is an Attractor?

                Gerd DaniDecember 14, 2021March 28, 20260

                Attractor is a set of states toward which a system tends to evolve, for a wide variety of starting conditions…

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                  What is an hyperbola?

                  Gerd DaniNovember 24, 2021March 28, 20260

                  Hyperbola is a type of smooth curve lying in a plane, defined by its geometric properties or by equations for…

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                    What is a Koch snowflake?

                    Gerd DaniNovember 15, 2021March 28, 20260

                    Koch snowflake is a fractal curve and one of the earliest fractals to have been described. It is based on…

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                      What is the Goldbach’s conjecture?

                      Gerd DaniNovember 2, 2021March 28, 20260

                      Goldbach’s conjecture is one of the oldest and best-known unsolved problems in number theory and all of mathematics. It states…

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