i. Due to space missions, the world has come closer. It has become very easy to contact a person in any part of the world within seconds.
ii. Due to internet, every information is available at our fingertips. We can gather information about worldwide events sitting at home.
iii. Use of satellites can give us advance alerts about various natural calamities, so that, we can take proper precautions.
iv. During war, the aerial surveillance can be used to get information about the enemy actions.
v. It is also possible to explore the fossil reserves and minerals in the earth.
In this way, due to its innumerable applications, the space mission or space technology has become an inevitable part of development of a nation.