Dark matter doesn’t emit light. It can’t be directly observed with any of the existing tools of astronomers. Yet astrophysicists believe it and dark energy make up most of the mass of the cosmos. What dark matter is, and what it isn’t. here. Source: https://earthsky.org/astronomy-essentials/definition-what-is-dark-matter…
Tag: interstellar dust
Tarantula Nebula seen through the eyes of Spitzer
Stunning new Spitzer Space Telescope image of the Tarantula Nebula in the nearby Large Magellanic Cloud dwarf galaxy. Spitzer ended its 16-year mission on January 30. Source: https://earthsky.org/space/tarantula-nebula-spitzer-telescope-image…