What's the darkest place in the solar system? What about the universe?

Space's darkest regions vary depending on how darkness is defined. Comet Borrelly's nucleus reflects less than 3% of sunlight, making it one of our solar system's darkest spots, while exoplanet TrES-2 b reflects under 1% of light due to atmospheric sodium and titanium oxide. Dense dust clouds called Bok globules block surrounding starlight completely, and distant regions captured by NASA's New Horizons telescope are 10 times darker than Earth's vicinity.