What is the purpose of the Solar and Heliospheric Observatory (SOHO) mission?
To provide insights into the sun
The Solar and Heliospheric Observatory (SOHO) is a joint ESA-NASA mission launched in December 1995. It is stationed near the Sun-Earth Lagrange point L1, about 1.5 million km from Earth, from where it has an uninterrupted view of the Sun.
Its purpose is to study the Sun: its deep interior (through helioseismology), its hot outer atmosphere (the corona) and the solar wind. It is also a key source of space-weather data and has discovered thousands of comets.
The cosmic microwave background was studied by missions such as COBE, WMAP and Planck; Earth's atmosphere and magnetic field are studied by Earth-observation and magnetospheric missions, not by a solar observatory like SOHO.
Hence, the answer is To provide insights into the sun.
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The correct full form of ISRO is:
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