Located in the Coma Cluster, about 300 million light years away from Earth, the orb is actually a distant view of the giant elliptical galaxy NGC 4889. At the center of that galaxy lies a sleeping giant: a supermassive black hole that is 21 billion times the mass of our sun. The size of a black hole can be estimated by its event horizon, or the distance from the center of the black hole at which nothing can escape its gravitational grasp.
How To Remove Oil Stains. To remove concrete oil stains from your driveway, garage, or patio, simply apply Pour-N-RestoreÂ® Oil Stain Remover to the oil stain! No scrubbing or rinsing needed. Once liquid has dried, sweep up the remaining powder and allow the remaining moisture to dry.
Keep all fluids, water, dirt, and oil out of the brake system (except for clean brake fluid). Keep all and any grease off pads, shoes, and rotor brake surfaces. If pads become contaminated with grease or oil, throw them out and buy new ones. If rotors become oily, clean them with brake clean, or hot soapy water.