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29Dec 2025

Alaknanda: Oldest Spiral Galaxy by Indian Astronomers

Indian Astronomers Discover Implausibly Old Spiral Galaxy Why in the News? Indian astronomers have discovered Alaknanda, the second farthest known spiral galaxy, using James Webb Space Telescope (JWST) data. Formed just 1.5 billion years after the Big Bang, it challenges existing galaxy formation models and pushes the boundaries of our understanding of the universe, much …

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24Apr 2025

Indian Study Explains Dark Matter Deficit Mystery

Why in the News ? Astronomers at the Indian Institute of Astrophysics have proposed a model to explain the unusual lack of dark matter in galaxy NGC 1052-DF2, challenging existing galaxy formation theories and offering new insights into the structure of the universe. Galaxy Defies Standard Dark Matter Models: NGC 1052-DF2, an ultra-diffuse galaxy, shows …

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