HD 191939 (4K English voice) from youtube download for pc 4k Watch Video
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Description: HD 191939 A Small documentaryn(HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away)nnThis documentary reflects our current scientific knowledge of HD 191939 as of December 2021nn--Do not use without written permission.--nnMariona Badenas, a Ph.D. candidate at MIT (USA) specializing in exoplanets, led the discovery and validation of HD 191939, a multi-planetary system composed of at least three sub-Neptune-sized planets around a Sun-like star. The uniqueness of HD 191939 insp
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