ISRO achieved great success with Chandrayaan-2 Orbitor

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Chennai, Indian Space Research Organization (ISRO) has said that Argon-40 is detected by the Moon's Atmospheric Structure Explorer-2 (Chase-2) payload aboard Chandrayaan-2 orbiter. According to ISRO, the orbiter orbiting the Moon has detected Argon-40 from a height of about 100 km.


ISRO stated that argon-40 is an isotope of noble gas argon. Argon gas is a major component of the Moon's orbit.


ISRO said that planetary scientists call this thin gaseous envelope around the lunar as 'lunar exosphere'. Due to its very subtle gas atoms collide with each other very hard.


According to ISRO, argon-40 is produced by radioactive dissolution of potassium-40.

Related image

The radioactive 40K nuclei are decomposed to form argon 40. Radioactive is present just below the lunar surface of the 40s.


The Indian Space Agency stated that the Chase-2 payload is a neutral mass spectrometer-based payload, which can detect components in the lunar neutral exosphere in the range of 1-300 AMU (atomic mass unit).

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