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Watch the universe emerge from the dark ages, with Lumina
The new simulation tracks dark matter, galaxies, stars, and cosmic structures over the universe’s first 2 billion years, in greater detail and volume than ever before. With the Big Bang, the universe burst into existence as a hot and dense soup of electrons and subatomic particles. This primordial ionized plasma, initially smaller than a single atom, rapidly expanded and cooled. In the process, particles in the soup slowed enough to bind with ele…
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/44/5e/445ed094-a8d0-48e3-a3e5-81645b78445d/img_3507.jpeg "For the First Time, Scientists Trapped an Elusive Antimatter Particle—and Contained It for Months. It Could Allow Them to Test an Enduring Physics Theory")
