Need of Space Probes

Probes are needed to perform various functions :

• ·         A probe makes observations of temperature, radiation, and objects in space.
• ·       A probe is also used to perform experiments on its surroundings, such as releasing chemicals or digging into surface dirt.
• ·        The changes that occur in course and speed of the probe provide information about atmospheric density and gravity fields to the scientists.
• ·    By exposing material from the earth to the conditions of space, the space probe allows the scientists to observe the effects of space on that material.