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UPSC Prelims Current Affairs

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January 2026

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Cosmological Recombination Radiation

Cosmological Recombination Radiation refers to the release of photons during the recombination epoch of the universe. This event occurred approximately 380,000 years after the Big Bang. It marks the transition from a hot, ionised plasma to neutral hydrogen. The radiation we observe today is known as the Cosmic Microwave Background. It provides crucial evidence for the Big Bang theory and the universe's evolution.

Novel Antenna Design for Cosmic Research

Recent advancements in cosmology have emerged from the Raman Research Institute in Bangalore. Scientists have developed a novel antenna capable of detecting signals in the 2.5 to 4...

December 4, 2024