The Reason 2026 Will Be an Unprecedented Year for India's Solar Observation Mission

For India's first solar observatory, 2026 is expected to be like no other.

This marks the initial occasion the observatory – which was placed into space recently – will be able to watch the Sun during the peak of its solar cycle.

As per research, this occurs roughly once every 11 years when the Sun's polarity reverses – a similar Earth scenario could be the planet's poles changing places.

It's a time of great turbulence. It involves the Sun transition from calm to stormy and is marked by a huge increase in the number of solar storms and coronal mass ejections (CMEs) – enormous clouds of plasma that erupt from the solar corona.

Composed of ionized particles, a coronal mass ejection can weigh up to a trillion kilograms and reach a speed exceeding 2,000 miles each second. It can head out toward various directions, including towards the Earth. At maximum velocity, it would take a CME about half a day to traverse the vast distance Earth-Sun distance.

"During typical or quiet periods, our star emits two to three CMEs a day," explains an astrophysics expert. "Next year, it's anticipated there will be over ten daily."

Researching coronal mass ejections is one of the key research goals for the Indian maiden solar mission. One, because the ejections offer a chance to learn about the Sun in the center of our planetary system, and two, since events that take place on the Sun threaten infrastructure on Earth and in orbit.

Impacts on Earth and Orbital Systems

CMEs seldom present immediate danger to human life, yet they impact our planet through generating magnetic disturbances that impact conditions in near space, where about thousands of spacecraft, comprising Indian satellites, orbit.

"The most beautiful manifestations from solar eruptions include northern lights, being a clear example that solar particles from Sun journey toward our planet," the scientist explains.

"However, they may cause electronic systems aboard spacecraft malfunction, disable power grids and disrupt weather and communication satellites."

Past Solar Events

• The most powerful solar storm ever recorded occurred during the 1859 solar superstorm that disabled telegraph lines across the globe
• During 1989, a part of Canadian electrical network failed, affecting six million people in darkness for nine hours
• During late 2015, solar storms disturbed air traffic control, causing chaos in Sweden and various European air hubs
• Recently in 2022, a CME had led to dozens of spacecraft failing

With capability to see events on the Sun's corona and spot a solar storm or a coronal mass ejection as it happens, record its temperature at origin and track its path, this serves as a forewarning to switch off power grids and spacecraft redirecting them out of harm's way.

The Mission's Unique Advantage

There are other space observatories watching our star, India's spacecraft holds an edge over others when it comes to studying the solar atmosphere.

"Aditya-L1's coronagraph has perfect dimensions enabling it to effectively simulate the Moon, fully covering the Sun's photosphere and allowing it continuous observation of almost all solar atmosphere 24 hours a day, 365 days a year, even during eclipses and occultations," notes the expert.

Essentially, this instrument functions as a synthetic eclipse, blocking the Sun's bright surface allowing researchers constantly study the dim solar atmosphere – a feat the real Moon does only during specific moments.

Moreover, this is the only mission that can study eruptions using optical wavelengths, enabling it to measure eruption heat and thermal output – crucial data that show how strong a CME would be if it headed toward Earth.

Readiness for Peak Period

To prepare for the upcoming solar maximum, researchers worked together to study information 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 – the iceberg that sank Titanic weighed much less.

At origin, its temperature was 1.8 million degrees Celsius with energy equivalent was equivalent to 2.2 million megatons of explosives – relative to nuclear weapons on Hiroshima and Nagasaki were 15 kilotons in scale respectively.

Even though these figures seem incredibly large, the scientist describes it as a moderate event.

The space rock that eliminated prehistoric life on our planet was 100 million megatons and when solar peak occurs, there may be CMEs carrying power matching even more than that.

"In my view this eruption we analyzed to have occurred when the Sun of typical solar activity. This establishes the benchmark that we'll be using assessing what to expect when the maximum activity cycle arrives," he states.

"The insights gained will assist in work out the countermeasures to be adopted safeguarding spacecraft in orbit. Additionally, they'll aid achieving a better understanding of near-Earth space," he adds.