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Earth may sit inside a huge cosmic void — a region of space with far fewer galaxies than average. Astronomers discovered this by mapping galaxy density and found that, for nearly a billion light-years in every direction, there’s less matter than expected. Beyond that, galaxy numbers return to normal, suggesting we’re near the center of this underdense region. This matters because less matter means weaker gravity, which allows space to expand slightly faster. That could help explain why nearby measurements of the universe’s expansion don’t perfectly match predictions from the early universe. It doesn’t mean Earth is trapped or isolated. The void isn’t empty, has no walls, and doesn’t affect light or travel — it simply shows that our part of the universe may be less crowded than average, offering new clues about how the cosmos evolves. 🌌 #space #explore #universe

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Most people don’t realise just how much information is stored inside a single sperm cell. Inside that microscopic head is 23 chromosomes, which together hold around 3.2 billion base pairs of DNA — the full genetic blueprint needed to build a human being from scratch. Think of DNA as a biological code. Each ‘letter’ in the code — A, T, C, or G — is like a piece of data. One sperm carries billions of these letters arranged in a precise sequence. If you were to convert that into digital terms, the amount of information would be equal to roughly 1.5 gigabytes of data. That means something so small you can’t see it without a microscope contains more data than an average smartphone photo library. But it gets deeper: this DNA doesn’t just store traits like eye colour or height. It carries instructions for how cells divide, how organs form, how the brain develops, how your immune system works — everything. It’s literally the instruction manual for building a human body, compressed into one tiny cell. And here’s the craziest part: One ejaculation can contain between 100 million to 300 million sperm. Multiply that by 1.5GB of data each, and that’s the equivalent of hundreds of millions of gigabytes of biological information being sent out in one moment. Life is wild. Nature fits an entire universe of information inside something smaller than a grain of dust. #Life #creation #science #facts

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The image is a 3D illustration of a eukaryotic cell found in humans but also in animals, plants, and fungi. This isn’t a photograph but a computer illustration created by Gael McGill, Director of molecular visualisation at Harvard. #explaining #explore #science #scienceismagic