• 3 months ago
Les scientifiques ont "pris une photo" du Big Bang en capturant le rayonnement du fond diffus cosmologique (CMB), qui est comme la lueur résiduelle du Big Bang. Ils ont utilisé des satellites comme le Cosmic Background Explorer (COBE) et le vaisseau spatial Planck pour mesurer cette lumière ancienne. Ces instruments ont détecté des signaux micro-ondes faibles qui voyagent dans l'espace depuis environ 13,8 milliards d'années. En analysant ces signaux, les scientifiques ont créé une carte détaillée de l'univers primitif, montrant de petites fluctuations de température. Cette "photo" nous aide à comprendre les origines de l'univers et comment il a évolué au fil du temps. Animation créée par Sympa.
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