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Cold Exoplanet WD 1856+534 b Revealed by Webb Telescope

5/3/2025

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Summary

Astronomers Discover Exoplanet

Astronomers have made a groundbreaking discovery: WD 1856+534 b, the coldest exoplanet known, chills at a frigid -125°F. This gas giant, orbiting a white dwarf star every 1.4 days, offers a unique glimpse into the mysteries of planetary survival and migration, thanks to the powerful observations from the James Webb Space Telescope.

Summary

Telescope Unveils Galaxies

On April 29, 2025, the James Webb Space Telescope unveiled a breathtaking image, “A Visual Feast of Galaxies,” from the COSMOS-Web survey. This mesmerizing snapshot captures thousands of galaxies, showcasing their intricate evolution and interactions, while merging data from both JWST and Hubble, deepening our insight into the universe's grand design.

History

Historical Context

Astronomical discoveries have evolved significantly since the early 20th century, marked by the launch of the Hubble Space Telescope in 1990, which transformed our understanding of galaxies. The recent findings from the James Webb Space Telescope, including the cold exoplanet WD 1856+534 b, build on this legacy, enhancing our grasp of planetary systems and cosmic evolution, echoing past advancements in observational astronomy.

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Astronomers Discover Exoplanet

Astronomers have made a groundbreaking discovery: WD 1856+534 b, the coldest exoplanet known, chills at a frigid -125°F. This gas giant, orbiting a white dwarf star every 1.4 days, offers a unique glimpse into the mysteries of planetary survival and migration, thanks to the powerful observations from the James Webb Space Telescope.

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