Astronomy Research and the Search of Extraterrestrial Life
Faith M. Sorensen
SCI/151
March 22, 1015
John Serri

The search for life outside of our world has become a full time job for our astrophysicists they search day in and day out looking and seeking for life on other planets and in other solar systems. The life on earth as we know it can only exist because we have the right mixture of properties to provide us with the perfect planet setting and atmosphere.
Describe the properties of life on Earth. All living creatures and organisms have the same basic characteristics and/or functions, sensitivity, response or order to their environment, development and growth, reproduction, homeostasis, regulation and processing energy. When we view these together the eight items define life. Organisms and creatures are organized and coordinated structures that consist of one or more cells. Even the very simple, single-celled organisms and creatures are complex. Inside each cell atoms make up molecules, these atoms and molecules in turn make up organelles and other inclusions. In a multicellular organism or creature similar cells from tissues. These tissues in turn work together to form organs. Organs collaborate to form organ systems. Organisms respond to different stimulus. A good example of this is that plants grow toward the light they also climb on walls and fences or respond to the touch. Even the smallest bacteria can move away or toward chemicals. Movement toward this is considered a good response, while movement away from this is considered a negative response. The single celled creatures or organisms multiply by duplicating their DNA. They then divide equally as the cell prepares to divide to form two new cells. The multicellular creatures or organisms produce reproductive germline cells that form new individual cells. When the reproduction