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ISRO Milestone: Chandrayaan-2 Makes First Ever Observation of Sun's Impact on Moon; Key Details

On May 10, 2024, ISRO said Chandrayaan-2 mission recorded the first-ever observation of a Sun Coronal Mass Ejection impacting the Moon via CHACE 2.
Launched on July 22, 2019 from Sriharikota, the Chandrayaan-2 mission carried eight experiment payloads including Chandra's Atmospheric Compositional Explorer 2, designed to study the Moon's airless, unshielded exosphere.
CHACE-2 measurements showed dayside lunar exosphere total pressure rose and number density increased by more than an order of magnitude as Coronal Mass Ejection carried helium and hydrogen ions.
ISRO said the finding will help understand the lunar exosphere and space weather impact, while lunar base architects must account for extreme CME events altering the lunar surface.
Despite the Vikram lander setback on September 7, the Chandrayaan-2 Orbiter remains fully operational in a 100 km x 100 km orbit, enabling continued lunar observations.

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18 Articles

The New Indian Express

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Chandrayaan-2 records moon’s first response to solar storm

These effects are significant on the moon, which has no magnetic field.

18 days ago·India

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Tribune India

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India’s Chandrayaan-2 spacecraft makes first-ever observation of solar storm’s impact on Moon - The Tribune

Chandrayaan-2 was launched by ISRO on July 22, 2019, from Sriharikota.

21 days ago·Chandigarh, India

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One News Page

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ISRO milestone: Chandrayaan-2 makes first ever observation of Sun's impact on Moon; key details

India's Chandrayaan-2 orbiter has achieved a groundbreaking first, detecting the impact of solar Coronal Mass Ejections on the Moon's tenuous atmosphere. Using the CHACE-2 instrument, scientists observed a significant surge in the Moon's exospheric pressure and density when hit by these ...

21 days ago

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The Hindu

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Times of India

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Chandrayaan-2 makes first ever observation of Sun's impact on Moon, says ISRO

The opportunity to directly observe the effects of the CME impacting on the Moon came on May 10, 2024, when a series of CMEs were hurled by the Sun.

21 days ago·India

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NDTV

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Chandrayaan-2 Makes First Ever Obseravtion Of Sun's Impact On Moon: ISRO

The Chandrayaan-2 mission, launched in 2019, has made the first-ever observation of the effects of the Sun's Coronal Mass Ejection (CME) on the Moon using its onboard scientific instruments, ISRO said on Saturday.

22 days ago·New Delhi, India

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