posted on Oct, 20 2007 @ 12:36 AM
Does anyone know any reliable sites which have information on space? The two points i need covered are:
1. Large objects have gravitational fields which exert a force on other objects both on them or near them. Dicuss the factors which influence this
force.
2. Discuss the many factors which have to be taken into account to achieve successful manned and unmanned rocket launches and to maintain stable orbit
and if necessary return to Earth.
If you have links to sites which hold this information these two points it would be much appreciated. Thanks.