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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

FreeAstroScience

  • Home
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    • AstroPhysics
    • Cosmology
    • Exploration
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When lakes lose their winter pulse: Climate change and the hidden Nitrogen story

May 27, 2026May 27, 2026

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

May 25, 2026May 25, 2026

Astrophysics

    RYUGU ASTEROID. It came from the outer solar system, say scientists

    Gerd DaniAugust 18, 2022March 28, 20260

    The results, published in Nature Astronomy, come after just over a year of initial analysis conducted by institutes and universities…

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      Black hole collisions could help to measure how fast the universe is expanding

      Gerd DaniAugust 16, 2022March 28, 20260

      A black hole is usually where information goes to disappear—but scientists may have found a trick to use its last…

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        Why is the sky dark at night? What does this simple fact teach us about the universe we live in?

        Gerd DaniAugust 15, 2022March 28, 20260

        —Why, the sky is dark at night because the Sun is illuminating the other side of the Earth! What does…

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          How to prove the Big Bang using your old TV set

          Gerd DaniAugust 13, 2022March 28, 20260

          In today’s digital era, we often overlook vintage household appliances, especially the bulky televisions of yesteryears. These devices, now replaced…

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            MONSTER STAR HAD NEVER-BEFORE-SEEN TITANIC ERUPTION

            Gerd DaniAugust 12, 2022March 28, 20260

            The star Betelgeuse appears as a brilliant, ruby-red, twinkling spot of light in the upper right shoulder of the winter…

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              Do ‘bouncing universes’ have a beginning?

              Gerd DaniAugust 12, 2022March 28, 20260

              In trying to understand the nature of the cosmos, some theorists propose that the universe expands and contracts in endless…

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                The length of Earth’s days has been increasing, Are we really in danger?

                Gerd DaniAugust 10, 2022March 28, 20260

                Do not trust posts that present scientific news in a sensational tone and praising mystery or catastrophe. The only truth…

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                  What Secrets reveal stars?

                  Gerd DaniAugust 9, 2022March 28, 20260

                  We’ll take a trip back in time to ancient Greek mythology: Stars reveal a lot of secrets and tell incredible…

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                    Huge, potentially disruptive sunspot will swing round to face Earth this weekend

                    Gerd DaniAugust 6, 2022March 28, 20260

                    A huge sunspot on the far side of the sun is set to face Earth this weekend, potentially lashing our…

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                      Questiones on Saturn

                      Gerd DaniAugust 6, 2022March 28, 20260

                      Saturn is best known for a large and distinctive system of icy rings. Saturn’s rings extend to a distance of…

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