A Radiant Colossus in the Universe's Infancy
Light from the galaxy PAN-z14-1 began its journey when the universe was 400 million years old — a cosmic infancy. The expansion of space made it travel to us for nearly 13.5 billion years.
Cosmic Cocoons: MEOW's Infrared Hunt Reveals the Secret Growth of Black Holes
The Universe is less than a billion years old, yet at its centers already sit black holes with masses of a billion suns. According to the conventional picture, they grew by voraciously devouring matter, but calculations show that 'feeding' must have been almost continuous, while visible quasar flares last only a few million years. So where does all the accreting fuel go?
Black Hole Infants: A Handicap Race in the Early Universe
A marathon lasting 13 billion years started with different weights. A hundred solar masses — lighter than some gas clouds. A hundred thousand — gravitational dominance, comparable to an elephant among kittens. That's what black hole seeds looked like, ones that by our time should have turned into supermassive giants.
Optical Illusion: How Dense Gas Masquerades as Metal-Poor Galaxies
In a distant galaxy, light from hot gas should reveal its composition. The James Webb Telescope split that light into a spectrum, and astronomers saw: oxygen lines too weak.