According to A Black Hole Is NOT a Hole by Carolyn Cinami DeCristofano, astronomers think a supermassive black hole is created w
hen radio waves travel through space to Earth.
there is too much empty space in a galaxy.
gravity causes many, many stars to collide.
a single star or planet explodes and collapses.
The answer is: However, the marine chronometer finally made accurate maps possible, creating safe, rapid, and efficient shipping routes. This is because it addresses the focus on international trade and opposes the counterclaim.
Grasp the cone with the right hand firmly but gently between thumb and at least one but not more than three fingers, two-thirds of the way up the cone.