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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
  • Astronomy
    • AstroPhysics
    • Cosmology
    • Exploration
  • Physics
  • Hi-Tech
    • A.I.
    • Robots
  • Healh
  • Lifestyle
    • Sport
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  • Environment
    • ClimateChange
  • Biology
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Headlines
  • Scenic view of waterfall

    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

    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

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

    May 26, 2026May 26, 2026
  • xray woman doing biceps curls

    New Cell Therapy Offers Hope for Advanced Liver Disease Patients

    May 25, 2026May 25, 2026
  • Dark matter investigations: quantum limits and the classical field behavior of axions

    Dark matter investigations: quantum limits and the classical field behavior of axions

    May 25, 2026May 25, 2026
  • Shenzhou-23: paving the path to lunar and Martian expeditions

    Shenzhou-23: paving the path to lunar and Martian expeditions

    May 25, 2026May 25, 2026
  • gerd on plane

    Why Do Ears Pop on Planes? The Truth Nobody Told You

    May 24, 2026May 24, 2026
  • Sun emitting golden light rays across all eight planets of the solar system showing light travel time from Mercury to Neptune

    How Long Does Light Take to Cross Our Solar System?

    May 24, 2026May 24, 2026
  • NGC 5584 barred spiral galaxy in Virgo with purple star-forming arms and bright foreground stars

    Can NGC 5584 Prove the Universe Expands Too Fast?

    May 24, 2026May 24, 2026
  • Scale comparison of UY Scuti hypergiant (1.26 billion km) dwarfing Earth's orbit (300 million km) and the Sun (1.39 million km).

    How Big Is UY Scuti? Could This Star Swallow Our Solar System?

    May 23, 2026May 23, 2026
  • Latest
  • Popular

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

    Lepidoptera scales are full of color and beautiful shapes

    Gerd DaniAugust 16, 2021March 28, 20260

    The scales determine the color of the wings and the body, which is why they are involved in the phenomena…

    Read More

      In the Universe there can be between 100 and 100,000 planets for each star

      Gerd DaniAugust 15, 2021March 28, 20260

      In our galaxy alone there are about 400 billion stars and in the Universe there are about two trillion (2,000,000,000,000)…

      Read More

        Victoria crater

        Gerd DaniAugust 15, 2021March 28, 20260

        This beautiful crater on the Martian surface was the home of the Opportunity rover for a few months. The crater,…

        Read More

          Is gravity the same across the Earth? And why is this important?

          Gerd DaniAugust 15, 2021March 28, 20260

           The Earth is rough and has different masses at different locations, and the gravitational field accompanies these variations, which occur…

          Read More

            Where does the Solar System really end?

            Gerd DaniAugust 15, 2021March 28, 20260

             We could say that this is where the Sun’s gravity ceases to be strong enough to prevent objects from escaping. …

            Read More

              Super-puffs, NASA’s nickname for this trio of planets

              Gerd DaniAugust 15, 2021March 28, 20260

              / In 2012, scientists discovered the solar-type star Kepler 51 and detected 3 planets in its orbit.  These planets are…

              Read More

                The Planet Neptune

                Gerd DaniAugust 14, 2021March 28, 20260

                Neptune is the fourth and last of the “gas giant” planets in proximity to the Sun.  Neptune is the eight…

                Read More

                  Einstein’s general relativity completely revolutionized understanding of the universe

                  Gerd DaniAugust 14, 2021March 28, 20260

                  Albert Einstein’s theory of general relativity, published in 1915, completely revolutionized science’s understanding of the universe.  It was only confirmed…

                  Read More

                    Epic Nova Eruption From Rare Star Is So Bright You Can See It With The Naked Eye

                    Gerd DaniAugust 13, 2021March 28, 20260

                    If you look carefully into the night sky, you might see a star that wasn’t visible last week.In the equatorial…

                    Read More

                      This is Hoba

                      Gerd DaniAugust 13, 2021March 28, 20260

                      Every year several thousand tourists pass through this small amphitheater to admire the central rock. The reason is simple: it…

                      Read More
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