Tag Observable universe

Cosmic Dawn Universe Photo Essay

      COSMIC DAWN IN A NUTSHELL Cosmologists have shown that the Universe began in a hot, dense, and featureless state about 13.7 billion years ago. The Universe we observe today, however, is rich with structures such as galaxies,…

3 D Image of Dark Matter First Ever. Video.

Astronomers have taken their first 3D look at a gigantic filament of dark matter, an invisible cosmic structure that can only be detected by its gravitational effects it has on its surroundings. The universe is thought to be structured like…