When we look up to the night sky, we see a lot of bright objects. Stars,
gas clouds, galaxies, or supernovae radiate light that our telescopes can catch. However, we know that the vast majority of matter in space does not send out light at all. We call it 'dark matter' due to its elusive nature. Indeed, dark matter seems to be completely invisible.
The dark side of the Sun - Solar reflection of dark matter - Read the full article