- Why in news
- On 23 July 2026, the Minister of State for Space told the Rajya Sabha about the scientific results of Aditya-L1 and Chandrayaan-3, and how they feed India's future space science missions.
- What it is
- Aditya-L1 is India's first dedicated solar observatory, launched by ISRO in 2023. It sits in a halo orbit around the Sun-Earth L1 point, which gives it an uninterrupted view of the Sun. It studies the corona, the photosphere, the chromosphere, solar wind and the interplanetary magnetic field.
- Objectives
- Aditya-L1 studies solar wind particles, the solar corona, near-UV signatures on the solar disc and the interplanetary magnetic field.
- Location
- Its position around the Sun-Earth L1 point gives a continuous view of the Sun.
- Category
- Aditya-L1 is a solar physics mission, not a space weather mission, though its data helps build space weather prediction capability.
- CME first
- It captured the first-ever spectroscopic signatures of the onset phase of a Coronal Mass Ejection.
- Flare study
- It gave the first comprehensive analysis of photospheric iron fluorescence across 47 X-class flares in 2024.
- Launch vehicle
- Aditya-L1 was launched by PSLV-C57 on 2 September 2023 and reached its halo orbit at L1 in January 2024.
Don’t confuse with Solar physics vs space weather mission: Solar physics missions study the Sun itself. Space weather missions predict its effects near Earth. Aditya-L1 is the former.
Don’t confuse with L1 vs L2: L1 lies between the Sun and Earth and is used for Sun watching. L2 lies beyond Earth on the far side from the Sun and is used for space telescopes.
Science and technology: 57 Prelims questions since 2013; most test the concept behind the news, not the news itself. In Mains, 12 news-triggered questions.
Why it matters
- Makes India a producer of primary, high-impact space science data.
- Builds the base for a space weather prediction capability that protects satellites and power grids.
Problems
- Aditya-L1 alone cannot forecast space weather, as it is a solar physics mission.
- Prediction needs more space-based systems and ground observations combined.
Way forward
- Configure dedicated space-based systems for space weather prediction.
- Use the experience in the Venus Orbiter Mission and missions from other Lagrange points.
Put in your answer
Geomagnetic storms 2024: Aditya-L1 particle and field data was combined with ground measurements to study the intense storms of May and October 2024.
Feed into future missions: Halo orbit maintenance and autonomous payload operations from Aditya-L1 feed into the Venus Orbiter Mission.
- 2019Mains GS3 · Q6India's plan for its own space station and its benefits.
- 2023Mains GS3 · Q16Moon mission's unachieved task, spacecraft subsystems, launch control role.
- 2016Mains GS3 · Q12Discuss India's space science achievements and their socio-economic applications.
- 2025Prelims Q33Statements on solar flares, CMEs, and Earth's rotation; choose correct combination.
UPSC’s own questions that come close to this issue, from our Prelims and Mains banks.
Prelims practice · Single answer
Ours, not from a UPSC paper
Consider the following statements about India's Aditya-L1 mission: 1. It is placed around the Sun-Earth L1 point, which gives it a continuous view of the Sun. 2. It is officially classified as a space weather mission. 3. It captured the first-ever spectroscopic signatures of the onset phase of a Coronal Mass Ejection. 4. Its analysis of photospheric iron fluorescence covered 47 C-class solar flares.
Which of the statements given above are correct?
True or false?
1 of 6
Statements the way Prelims prints them. Say first, then see the fact.
1.Aditya-L1 is placed around the Sun-Earth L1 point, which allows it a continuous view of the Sun.
True. L1 placement gives uninterrupted viewing of the Sun.
2.Aditya-L1 is officially classified as a space weather mission.
False. It is a solar physics mission, not a space weather mission.
3.The L1 point lies on the far side of the Earth, away from the Sun.
False. L1 lies between the Sun and Earth, about 1.5 million km from Earth.
4.Aditya-L1 was launched by a PSLV rocket.
True. PSLV-C57 launched it in September 2023.
5.The photospheric iron fluorescence analysis by Aditya-L1 covered 47 C-class solar flares.
False. It covered 47 massive X-class flares during Solar Cycle 25 peak in 2024.
6.Chandrayaan-3 has so far been the only successful mission to the polar region of the Moon.
True. The release states this.
Written by us from the release, not by UPSC; checked by a second model.
Worth revising until Prelims 2028: most news questions come within two years of the event.