• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Manifest Learning Academy
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Science & Tech

Chandrayaan-2 observes Argon-40 in lunar exosphere

March 11, 2022
in Science & Tech
Reading Time: 2 mins read
0
Chandrayaan-2 observes Argon-40 in lunar exosphere
98
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF

In news- Chandra’s Atmospheric Composition Explorer-2 (CHACE-2) instrument onboard India’s 2017 Chandrayaan-2 orbiter has made new exciting observations related to the distribution of an important gas (Argon-40) in the tenuous lunar exosphere, recently.

Key observations-

  • For the first time, the CHACE experiment onboard Chandrayaan-2 orbiter has continuously observed Ar-40 in the latitude range of -60 to +60 degrees.
  • The study also mentioned that the observed global distribution indicated that the interaction of Ar-40 with the surface is similar in low and mid-latitude regions. 
  • This new observation is responsible for providing insights into the dynamics of the lunar exosphere in the first few tens of meters below the lunar surface. 
  • This is not the first time that Argon-40 has been detected on the lunar surface, the detections earlier were limited to near-equatorial regions as seen by the Apollo-17 mission.
  • The CHACE-2 observations reveal an increase in the number density of Argon-40 near the sunrise terminator, a decrease along the dayside, a secondary peak near the sunset terminator and a night-side minimum. 
  • However, the biggest revelation was that the density of Argon-40 with respect to solar longitudes is similar to that of low latitude regions, despite the differences in temperature and topography.
  • CHACE-2 was a sequel to the CHACE experiment on the Moon Impact Probe (MIP) of Chandrayaan-1 mission and also draws heritage from the Mars Exospheric Neutral Composition Analyser (MENCA) experiment aboard the Indian Mars Orbiter Mission.

What are noble gases?

  • The noble gases are colourless, odourless, tasteless, nonflammable gases.
  • Noble gas, are any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. 
  • The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).

About Argon-40-

  • Argon-40 is one of the isotopes of the noble gas Argon, an inert, colourless and odourless element found on the Earth that originated from the radioactive disintegration of Potassium-40 (K-40) present below the lunar surface.
  • According to ISRO, once the disintegration is formed, it diffuses through the inter-granular space and makes its way up to the lunar exosphere through faults.

Further reading: https://journalsofindia.com/chandrayaan-3/

image_pdfMake PDF
Source: AIR
Tags: AIRPrelims

Related Posts

Breast tissue density’s role in detecting breast cancer

Breast tissue density’s role in detecting breast cancer

May 1, 2023
LUPEX mission

LUPEX mission

April 29, 2023
What is the Big Catch-up initiative?

What is the Big Catch-up initiative?

April 28, 2023
Shingrix vaccine

Shingrix vaccine

April 28, 2023
India’s first digital park

India’s first digital park

April 25, 2023
TeLEOS-2 and Lumelite-4

TeLEOS-2 and Lumelite-4

April 24, 2023
The State of the World’s Children 2023

The State of the World’s Children 2023

April 24, 2023
National Quantum Mission

National Quantum Mission

April 21, 2023
First test flight of SpaceX’s big Starship

First test flight of SpaceX’s big Starship

April 17, 2023
Bengaluru to get India’s 1st 3D printed post office

Bengaluru to get India’s 1st 3D printed post office

April 14, 2023
Please login to join discussion
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR All India Radio BBC Business Line Business Standard dow Down to Earth DownToEarth DTE Economic Times ET FAO Financial Express GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express Indiatoday India today Kurukshetra Livelihoods portal LiveMint Mains News Newspaper News Paper PIB Prelims PRS India RSTV Science Reporter Survey The Hindu The India Express The Indian Express The Print the wire Times of India TOI TOPPERS Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In