galaxy formation
Scientists Found a Lookalike of Our Own Galaxy Deep in Cosmic Time
12 billion light years from Earth, scientists spotted a galaxy that is the spitting image of a young Milky Way. Its discovery challenges our understanding of the early universe.
A Mysterious Ancient Galaxy Just Rewrote the Universe's Timeline
A disk galaxy in the early universe, just 1.5 billion years after the Big Bang, somehow formed during a time of chaotic cosmic conditions.
Scientists Just Discovered 39 'Invisible' Galaxies
These ancient galaxies, known as H-dropouts, defy our current understanding of the early universe.
Why the Brightest Galaxies Create 1,000 Times More Stars Than Ours
Submillimeter galaxies are insane star-making dynamos. Why?
Dark Matter Halos Are Sad Would-Be Galaxies
The early universe naturally selected fast-forming galaxies.
Astronomers Used Quasars as Flashlights to Illuminate the Dark Matter Between Galaxies
No, literally. Quasars make great cosmic flashlights in a pinch.
Why Our Dark Matter Ghost Hunting Expeditions Might Be Failing
Dark matter is thought to be the ghosts that helped build the structured universe, ghosts that the universe _needed_ to make galaxies happen. I say "ghosts" because dark matter doesn't interact with the universe in ways beyond gravity; the...