Post Archives tagged ‘orbit’


 

Earth’s Orbit is not a Perfect Circle

Posted on: January 30th, 2011 by
1

Earth
Earth, our home planet, is a beautiful blue and white ball when seen from space. Earth is the third planet from the Sun and the only one in the solar system known to harbor life. Earth is the only planet known to support life and to have liquid water at the surface. Earth is about Continue reading the story "Earth’s Orbit is not a Perfect Circle"

The solar system consists of planets and other bodies that orbit the Sun in predictable paths

Posted on: December 29th, 2010 by
Comments Requested

There are hundreds of billions of stars in our Milky Way galaxy. The Milky Way itself is only one of hundreds of billions of galaxies. Since our sun is an average-sized star, scientists have long hypothesized that many other stars have planets orbiting them. However, until recently we had no evidence about planets orbiting other stars. There is a saying that states, Continue reading the story "The solar system consists of planets and other bodies that orbit the Sun in predictable paths"

2 Company 3 a Crowd

Posted on: December 26th, 2010 by
Comments Requested

Two people who do well can often find their relationship destabilized by the arrival of a third in its orbit. This is even more obvious when the gravity is the force of attraction involved. Newton taught us that two bodies can remain in stable orbit around their center of mass under their mutual gravitational forces - as do the Earth and moon. But if a Continue reading the story "2 Company 3 a Crowd"