Aliens?
The idea of aliens is usually associated with science fiction but scientists have begun studying this more and more. They have been studying planets that could possibly be home to extra-terrestrial life forms, but these planets need to have very specific conditions in order to support this type of life. The planet would need to be a terrestrial planet which means that it has a solid surface. It would need to have a water source. It would also need to have an atmosphere and gravitational force much like that of the Earth.

Science Fair

For my science fair project I will be building a Leyden jar and Electrophorus capacitor which can be used to store static charge. I will use these items to the test the conductivity of different materials. The materials I will be testing are wax, water, and aluminum foil. I chose this project because I find electricity very interesting and enjoy making things.

Sources:
http://www.howstuffworks.com/capacitor.htm
http://www.sciencebuddies.org/science-fair-projects/project_ideas/Elec_p049.shtml

Dark Matter and Energy

Long ago people thought the world was flat, then they realized that the Earth revolved around the Sun and discovered that the Earth is part of the Milky Way galaxy. Later people discovered the universe and that it was made up of many galaxies. All of these discoveries  were all due to scientific observations and theories. Science is constantly updating our thinking about things. To this day we are still making observations about the universe, for example the discovery of dark matter and energy. Dark matter is a type of matter that is invisible. It can be detected by the strong gravitational force. Dark matter has a large mass and the Hubble study showed areas where dark matter has become so dense that it totals 100 trillion times the sun's mass. Dark energy is a repulsive force. It is like the counter force of gravity and the equivalent of the Einstein's cosmological constant. It is the force that keeps the universe expanding and keeps it from collapsing.http://hubblesite.org/newscenter/archive/releases/2008/03/full/http://hubblesite.org/newscenter/archive/releases/2009/08/full/