Parker Solar Probe by NASA will study the outer atmosphere of the sun known as the corona Why should...........

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Parker Solar Probe by NASA will study the outer atmosphere of the sun, known as the corona. Why should we be studying the corona ?

1.Solar flares can damage satellites and impose an enormous financial cost on space programmes

2.The corona has the lowest temperature in the Sun making scientific observations possible.

3.Very large flares can generate currents within electricity grids on earth and adversely affect energy supplies.

Select the correct answer using the codes below.

1 and 2 only

1 and 3 only

3 only

1 ,2 and 3

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Explanation:

Statement 2: The corona is in the outer layer of the sun’s atmosphere—far from its surface. Yet the corona is hundreds of times hotter than the sun’s surface.
However, the corona is very dim because the corona is about 10 million times less dense than the sun’s surface.
This low density makes the corona much less bright than the surface of the sun.
The corona is usually hidden by the bright light of the sun's surface. That makes it difficult to see without using special instruments. However, the corona can be seen during a total solar eclipse.

Statement 1: Parker Solar Probe will travel through the sun’s atmosphere, closer to the surface than any spacecraft before it.
To measure the corona, the probe will reach an orbit within four million miles (6.5 million km) of the sun. PSP is also aimed at collecting vital information about the life of stars and their weather events. This will help scientists improve how we predict dangerous solar flares, which can disrupt satellites and power supplies here on Earth.
Statement 3: The mission can help scientists to better understand solar flares – brief eruptions of intense high-energy radiation from the sun’s surface that can knock out communications on Earth.
According to Nasa, observations from this new vantage point will also help to uncover the physics of how stars work, and could improve our ability to predict space weather. These events have impacts on Earth as well as the satellites and astronauts in space.