India made another major milestone in its space missions. Indian Space Research Organisation (ISRO) made a huge announcement about its spacecraft Aditya-L1 on Saturday.

India's Aditya-L1 Crosses Earth's Sphere of Influence

The Aditya-L1 mission, which set out on its four-month trek to the solar system's core on Sept. 2, is equipped with tools for studying the Sun's outermost layers. The Indian Space Research Organisation (ISRO) announced in a statement on X (formerly Twitter) late Saturday that the spacecraft had left the Earth's area of influence.

Aditya, who was given the name of the Hindu sun god, has covered 920,000 kilometers (570,000 miles), or slightly over half of the distance on the journey.

The mission can then continue in a steady halo orbit around our nearest star because the gravitational effects of both astronomical bodies have already been canceled out. The Mars Orbiter Mission was the first time ISRO could send a spacecraft outside the Earth's sphere of influence, and this is the second time in a row, it added.

In August, India became the fourth country to land on the moon and the first to set down a craft close to the completely unexplored lunar south pole. The rover Pragyan surveyed the area around its landing site but shut down before starting the lunar night, which lasts nearly two weeks on Earth. India had intended to extend the mission by reactivating the solar-powered craft when daylight returned to the lunar surface. However, so far, they were greeted by radio silence.

Despite the current fate of the rover, India has remained optimistic since they still considered it a mission accomplished. ISRO chief S. Somanath said the rover has done what was anticipated. Hence, it is fine even if it does not wake up.

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Aditya-L1 Mission

Aditya-L1 mission will be the first Indian expedition to study the Sun from space. The spacecraft will be positioned in a halo orbit around the Sun-Earth system's Lagrange point 1, or L1, located approximately 1.5 million kilometers from Earth.

The main benefit of having a satellite in the halo orbit around the L1 point is continuously seeing the Sun without occultation or eclipses. This will allow us to watch better the solar activity and how it affects the space weather in real-time.

The spacecraft has seven payloads that use electromagnetic, particle, and magnetic field detectors to study the photosphere, chromosphere, and the Sun's outermost layers (the corona).

Four payloads use the unique vantage point L1 to observe the Sun directly, while the remaining three conduct in-situ particle and field studies at the Lagrange point L1. This allows for significant scientific research on the propagation of solar dynamics in the interplanetary medium.

The Aditya L1 payloads are expected to offer the most important information to comprehend the issue of coronal heating, coronal mass ejection, pre-flare and flare activities, their features, dynamics of space weather, propagation of particles and fields, and more.

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