Chandrayaan-3 rover confirms presence of sulphur on lunar surface,search for Hydrogen underway: ISRO
Bengaluru, Aug 29: The Laser-Induced Breakdown Spectroscope instrument onboard 'Pragyan' rover of Chandrayaan-3 has unambiguously confirmed the presence of sulphur on the lunar surface near south pole, through first-ever in-situ measurements, ISRO said on Tuesday.
It also said the instrument also detected aluminium, calcium, iron, chromium, titanium, manganese, silicon and oxygen, as expected.
"The Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard Chandrayaan-3 Rover has made the first-ever in-situ measurements on the elemental composition of the lunar surface near the south pole. These in-situ measurements confirm the presence of Sulphur (S) in the region unambiguously, something that was not feasible by the instruments onboard the orbiters," the space agency said in a statement.
According to ISRO, LIBS is a scientific technique that analyses the composition of materials by exposing them to intense laser pulses.
"A high-energy laser pulse is focused onto the surface of a material, such as a rock or soil. The laser pulse generates an extremely hot and localised plasma. The collected plasma light is spectrally resolved and detected by detectors such as Charge Coupled Devices. Since each element emits a characteristic set of wavelengths of light when it's in a plasma state, the elemental composition of the material is determined," it said.
Preliminary analyses have unveiled the presence of Aluminum (Al), Sulphur (S), Calcium (Ca), Iron (Fe), Chromium (Cr), and Titanium (Ti) on the lunar surface. Further measurements have revealed the presence of manganese (Mn), silicon (Si), and oxygen (O), it said.
"Thorough investigation regarding the presence of Hydrogen is underway," ISRO said.
LIBS instrument is developed at the Laboratory for Electro-Optics Systems at Peenya Industrial Estate, Bengaluru where the first India satellite was fabricated in 1975.
India on August 23 scripted history as ISRO's ambitious third Moon mission Chandrayaan-3's Lander Module (LM) touched down on the lunar surface, making it only the fourth country to accomplish the feat, and first to reach the uncharted south pole of Earth's only natural satellite.
Prime Minister Narendra Modi on Saturday announced the decision to name the spot where Chandrayaan-3 Vikram lander made soft landing as 'Shiv Shakti Point' and the site where the Chandrayaan-2 lander crash-landed on the Moon's surface in 2019 would be known as "Tiranga Point".
Also, August 23, the day the Chandrayaan-3 lander touched down on the lunar surface, would be celebrated as National Space Day', Modi had said.
Chandrayaan-3 Mission:
— ISRO (@isro) August 29, 2023
In-situ scientific experiments continue .....
Laser-Induced Breakdown Spectroscope (LIBS) instrument onboard the Rover unambiguously confirms the presence of Sulphur (S) in the lunar surface near the south pole, through first-ever in-situ measurements.… pic.twitter.com/vDQmByWcSL
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Gold smuggling racket busted at Bengaluru airport, 5 arrested
Bengaluru (PTI): The Directorate of Revenue Intelligence (DRI) has busted a major international gold smuggling syndicate operating through Kempegowda International Airport in Bengaluru following a coordinated operation, according to an official statement.
Five people have been arrested so far in connection with the case and efforts are underway to identify the key masterminds and dismantle the entire network, officials said.
Acting on specific intelligence inputs, officers of the DRI’s Bengaluru Zonal Unit mounted surveillance at Terminal 2 of the airport, leading to the interception of a network involving foreign nationals and local facilitators.
The operation, conducted over April 6 and 7, culminated in the seizure of 3.356 kg of high-purity gold worth about Rs 5 crore in paste form.
“The officers of the Directorate of Revenue Intelligence (DRI), Bengaluru Zonal Unit, have successfully busted a major international gold smuggling syndicate operating through Kempegowda International Airport (KIAL), Bengaluru,” the agency said in a press release.
Officials said the contraband was ingeniously concealed in paste form inside capsule-shaped packets, highlighting the sophisticated methods adopted by the syndicate.
Investigations revealed that carriers arriving from abroad deliberately chose Bengaluru as a transit point, exploiting longer layovers to facilitate covert transfers within the airport premises.
“The gold was concealed on the body and transferred using a pre-arranged passcode system inside sensitive areas such as washrooms and smoking zones, thereby bypassing Customs scrutiny,” the statement said.
The use of coded exchanges within restricted zones enabled the syndicate to evade routine checks, it said, adding that the probe also uncovered insider involvement within the airport ecosystem.
“The syndicate had further infiltrated the airport ecosystem, with the involvement of an insider who misused authorised access to restricted zones to receive and smuggle out the contraband,” the DRI said.
The operation also revealed the use of encrypted communication platforms featuring coded messages and disappearing chats.
Authorities said preliminary investigations indicate the involvement of a wider international network.
“Preliminary investigation indicates that the network is part of a larger cross-border smuggling syndicate involving foreign operatives, suspected to be Bangladeshi nationals, working in tandem with domestic handlers and facilitators,” the DRI said.
Officials said the case reflects the increasing sophistication of smuggling operations and reiterated that the agency remains committed to curbing such organised economic offences.
