The Reason 2026 Is Set to Be an Unprecedented Year for the Indian Solar Observation Mission

Regarding Aditya-L1, 2026 will be truly unique.

It's the first time the observatory – that entered into space last year – will be able to watch the Sun during the peak of its solar cycle.

According to research, it comes approximately once every 11 years as the Sun's magnetic poles flip – the Earth equivalent would be the North and South poles changing places.

This period marked by intense activity. It sees the Sun transition from calm to stormy and features a huge increase in the number of solar eruptions and coronal mass ejections (CMEs) – enormous clouds of fire that erupt from the solar corona.

Composed of ionized particles, a coronal mass ejection can weigh of billions of tons and reach a speed of up to 3,000km each second. It can travel toward various directions, including towards the Earth. At maximum velocity, it would take an ejection about half a day to cover the vast distance between Earth and the Sun.

"In the normal or low-activity times, the Sun launches a few solar eruptions a day," explains a leading scientist. "In 2026, we expect them to be 10 or more daily."

Researching coronal mass ejections is one of the key scientific objectives for the Indian first solar observatory. Firstly, because the ejections provide an opportunity to learn about the Sun in the center of our solar system, and two, since events that take place on the solar surface threaten infrastructure on Earth and in space.

Effects on Earth and Space Infrastructure

CMEs seldom present a direct threat to human life, but they do affect life on Earth by causing magnetic disturbances that impact conditions in Earth's vicinity, where about 11,000 satellites, comprising many from India, orbit.

"The most spectacular displays of a CME are auroras, which are a clear example that solar particles from Sun are travelling to Earth," the expert explains.

"However, they may make all the electronics on a satellite fail, disable electrical networks and disrupt weather and communication satellites."

Historical Solar Events

• The strongest solar event in history was the Carrington Event that disabled communication systems worldwide
• During 1989, sections of Quebec's power grid failed, affecting six million people in darkness for nine hours
• During late 2015, solar storms disturbed flight operations, leading to chaos across Scandinavia and various European airports
• In February 2022, a CME had led to 38 commercial satellites failing

With capability to see events in the solar atmosphere and spot solar activity or a coronal mass ejection in real time, record its temperature at origin and watch its path, it can work as a forewarning to shut down electrical systems and satellites and move them out of harm's way.

Aditya-L1's Special Capability

There are other solar missions watching the Sun, Aditya-L1 holds an edge compared to rivals regarding studying the solar atmosphere.

"Aditya-L1's coronagraph is the exact size that lets it nearly mimic lunar coverage, fully covering the solar disk and allowing it continuous observation of nearly the entire of the corona 24 hours a day, 365 days a year, including during eclipses and occultations," says the researcher.

Essentially, this instrument functions as a synthetic eclipse, obscuring the solar glare to let scientists continuously observe the dim solar atmosphere – a feat the real Moon does only during specific moments.

Additionally, it's unique capable of examining eruptions in visible light, enabling it to determine a CME's temperature and heat energy – key clues indicating the intensity a CME would be when traveling toward Earth.

Preparation for Maximum Activity

In preparation for the upcoming solar maximum, researchers worked together analyzing the data obtained from a major solar eruption recorded by the mission has observed recently.

It originated on 13 September 2024 during early hours. Its mass was 270 million tonnes – for comparison that sank Titanic weighed much less.

At origin, its temperature was 1.8 million degrees Celsius and the energy content comparable to 2.2 million megatons of TNT – relative to the atomic bombs used in Japan were much smaller and 21 kilotons each.

Although the numbers seem incredibly large, the expert classifies it as a moderate event.

The asteroid which wiped out the dinosaurs on Earth carried enormous energy and during the Sun's maximum activity cycle, we could see CMEs carrying power matching greater levels.

"In my view the CME we evaluated happened during periods of typical solar activity. This establishes the benchmark for future comparison to evaluate what is in store during solar maximum arrives," he states.

"The insights from this will assist in developing protective measures to implement to protect satellites in near space. Additionally, they'll aid achieving deeper knowledge of our space environment," he concludes.