Stars and Constellations
With the invention of the telescope in the 17th century, combined with information about the laws of gravity it was determined that all stars are like the body we know as the Sun. Stars form from clouds that are made of hydrogen and helium. A process that results from its own gravitational pull and eventually results in nuclear fusion produces … Keep Reading → remarkably powerful levels of energy. Stars are typically 1 to 10 billion years old. If the gravitational pull gets too strong a star can turn into a black hole. The stars that appear to be blue are hotter than the stars with red colors. A constellation is a group of stars that appear to form a pattern in the sky. There are 88 known constellations. Constellations are not actual entities. They have been used as a way to memorize and categorize various groupings of stars.
