Context: ARIES facility (Aryabhata Research Institute for Observational Sciences) will host the support centre for Aditya-L1 mission, which is due to be launched next year (2022).

• It aims to study the Sun and the region between the Sun and the Earth.

Aditya – L1 First Indian mission to study the Sun

• The Aditya-1 mission was conceived as a 400kg class satellite carrying one payload, the Visible Emission Line Coronagraph (VELC) and was planned to launch in a 800 km low earth orbit.
• A Satellite placed in the halo orbit around the Lagrangian point 1 (L1) of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/ eclipses.
• Therefore, the Aditya-1 mission has now been revised to “Aditya-L1 mission” and will be inserted in a halo orbit around the L1, which is 1.5 million km from the Earth.
• The satellite carries additional six payloads with enhanced science scope and objectives.
• The major advantage of such a placement is that it would allow the satellite to continuously view the Sun without any occultation/ eclipses. 

Significance

• Aditya-L1 mission provides an opportunity to solar scientists from multiple institutions within the country to participate in space based instrumentation and observations.
• The enhanced Aditya-L1 project will enable a comprehensive understanding of the dynamical processes of the sun.It will enable the understanding of the long-term evolution of the dynamic processes and underlying physical mechanisms responsible for them.
• The Mission will enable the availability of a detailed compendium of the location and duration of different features on the solar surface such as coronal holes, prominences, flares, Coronal Mass Ejection (CMEs) and sunspots. 
• Continuous monitoring of the location and duration of these features will help in monitoring the Earth directed CMEs and thereby, the space weather.

Note: ARIES is an autonomous institute under the Department of Science & Technology and is located in Nainital (Uttarakhand).