Tolerance.ca
Directeur / Éditeur: Victor Teboul, Ph.D.
Regard sur nous et ouverture sur le monde
Indépendant et neutre par rapport à toute orientation politique ou religieuse, Tolerance.ca® vise à promouvoir les grands principes démocratiques sur lesquels repose la tolérance.

You’ve heard of the Big Bang. Now astronomers have discovered the Big Wheel – here’s why it’s significant

(Version anglaise seulement)
par Themiya Nanayakkara, Lead Astronomer at the James Webb Australian Data Centre, Swinburne University of Technology
Deep observations from the James Webb Space Telescope (JWST) have revealed an exceptionally large galaxy in the early universe. It’s a cosmic giant whose light has travelled over 12 billion years to reach us. We’ve dubbed it the Big Wheel, with our findings published today in Nature Astronomy.

This giant disk galaxy existed within the first two billion years after the Big Bang, meaning it formed when the universe was just 15% of its current age. It challenges what we know about how galaxies form.
The Conversation


Lire l'article complet

© La Conversation -
Abonnez-vous à Tolerance.ca


Suivez-nous sur ...
Facebook Twitter