After 5 billion years, the sun will have used up most of its hydrogen, and its core will have become denser than it now is. The temperature will increase10 times than the normal .

The sun's intense heat will be enough to fuse the helium into larger atoms, and as long as its helium supply lasts, it will continue to shine - about 100,000,000 years.

During this time, however, the sun will begin to shrink, due to its lessening mass. When its fuel runs out, it will become a white dwarf.

When the sun runs out of heat, it will be a huge, black, chunk of carbon, floating in space. It will be called a black dwarf.

Earth is nothing but a large mass of rock which constitutes several kinds of minerals.

It is only planet where life is possible. Earth contains north pole and south pole

which creates magnetic field around it. Magnetic field protects earth from exploits

in the universe ,due to this several artificial satellites will revolve around the earth which plays the major role in communication system.

Technical name 'fast-mode magneto-hydro-dynamical wave'.

First discovered in May 1997 by the Solar and Heliospheric Observatory (SOHO).

The charged particles moves with the speed of 250 km per sec.

Clouds of charged particles known as sun storm.

They reach earth within 2 to 3 days. Our earth has its own magnetic field which

acts as a shield . It protects the earth from sun storm.

So magnetic field plays major role in communication.

If solar tsunami occur then it will penetrate in the earth atmosphere and destroys the devices.

The solar tsunami can hit earth any time. Scientists are predicting around 2012-13. It will not cause any problem on human

lives. The destruction will depend on the

intensity of the solar tsunami. It will take few years to again restore .