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Showing posts with the label Astronomy

The Jewelled Ring of the Cosmos - Gravitational Lensing and Quasars

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  Introduction The cosmos is a treasure trove of celestial wonders, and among these marvels, the phenomenon of gravitational lensing stands out. In this post, we delve into the mesmerizing "Jewelled Ring" featured by the ESA/Webb Picture of the Month, showcasing the gravitational lensing of the quasar RX J1131-1231. Gravitational Lensing: Nature's Magnifying Glass Gravitational lensing, a concept predicted by Einstein, acts like a natural telescope, magnifying the light from distant celestial objects. This phenomenon occurs when a massive object, like a galaxy, warps the space around it, causing light from objects behind it to bend and create multiple images. The Jewelled Ring: RX J1131-1231 Located approximately 6 billion light-years away in the constellation Crater, RX J1131-1231 is one of the best-lensed quasars discovered. The foreground galaxy distorts the quasar’s image into a bright arc, creating four distinct images of the quasar. Studying Black Holes with Quasars...

Discover the Universe: Hubble Deep Field Images Unveil the Cosmos 🌌🔭

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 Hello, space enthusiasts! Today, we’re exploring one of the most significant achievements in astronomy: the Hubble Space Telescope's Deep Field images. These breathtaking images have revolutionized our understanding of the universe and our place within it. What Are Hubble Deep Field Images? The Hubble Deep Field (HDF) and Hubble Ultra Deep Field (HUDF) are composite images taken by the Hubble Space Telescope. These images capture a tiny region of space with extraordinary detail, revealing thousands of galaxies at various stages of evolution. Significance of the Hubble Deep Field Images The HDF and HUDF images show galaxies as they were billions of years ago, providing a window into the early universe. This helps astronomers study galaxy formation and evolution over cosmic time. Hubble Deep Field (HDF) Captured in 1995, the original Hubble Deep Field focused on a seemingly empty patch of sky in the constellation Ursa Major. Over ten days of continuous observation, Hubble revealed ...