A star is a massive ball of burning hydrogen, while a galaxy is a collection of Stars. A galaxy can contain anywhere between one million and one trillion stars.
A star forms when a very big cloud of gas contracts under the influence of its own gravitational force. As this contraction takes place the object emits energy. This energy is called fall energy. As...
The Bronze star is awarded for acts of valor A bronze service star just denotes participation in military campaigns or multiple engagements in the same campaign. It's an addition to a service medal....