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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Fascism will not be allowed to enter through the back door of vote rigging: CM Siddaramaiah
New Delhi: Chief Minister Siddaramaiah on Sunday asserted that fascism would not be allowed to enter India “through the back door of vote rigging” and called upon citizens to collectively defend the country’s democratic foundations.
Speaking after participating in an anti–vote rigging protest organised in New Delhi, Siddaramaiah said the gathering was not merely a political demonstration but a stand to protect Indian democracy. “We have come to the heart of our republic not as Congress workers or voters, but as protectors of Indian democracy,” he said.
Emphasising the importance of the right to vote, Siddaramaiah said it was the most sacred right guaranteed by the Constitution and the very foundation of democracy.
“Through voting, a farmer shapes the future of his children, a worker safeguards his dignity, a youth realises dreams, and a nation expresses its collective will,” he said.
He accused the BJP-led Union government of attempting to undermine this right through what he termed systematic vote rigging, including the alleged misuse of the special revision of electoral rolls. “This power is being stolen repeatedly,” he alleged.
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Warning against authoritarian tendencies, Siddaramaiah said history had shown that dictatorship does not begin with violence but with the misuse of institutions and manipulation of democratic systems.
“Across the world, authoritarian regimes pretend to protect democracy while quietly subverting it. This is what the BJP is doing today,” he charged.
He alleged that the ruling party was controlling institutions, intimidating electoral machinery, distorting voter lists, suppressing voter turnout in opposition strongholds, and misusing money and power. “This is not mere maladministration. Vote rigging is an attack on the very idea of India,” he said.
Siddaramaiah further claimed that governments formed through “stolen votes” could not be considered democratic.
“Such regimes survive through fear, fraud and distortion of the people’s mandate,” he said, adding that vote rigging posed the biggest threat to the republic since Independence.
Praising Leader of the Opposition in the Lok Sabha Rahul Gandhi, Siddaramaiah said he had shown exceptional courage in exposing alleged irregularities in voter lists, booth-level manipulation and “systematic, organised vote rigging” across several states, including Karnataka, Haryana and Bihar.
Referring to Karnataka, Siddaramaiah cited Mahadevpura and Aland constituencies as examples highlighted by Gandhi. In Mahadevpura, he said, thousands of allegedly fake and fraudulent voter entries and discrepancies in electoral rolls pointed to a narrow BJP victory. In Aland, he said, attempts were made to remove the names of legitimate voters ahead of the 2023 Assembly elections.
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He noted that a Special Investigation Team (SIT) had recently filed a chargesheet accusing seven persons, including a former BJP MLA and his son, of attempting to delete the names of around 6,000 voters in Aland.
“This is a significant legal step in the fight against vote rigging,” he said.
Siddaramaiah concluded by stating that the fight against vote rigging was rooted in constitutional morality, Ambedkarite thought and the core principle of democracy. “Sovereignty belongs to the people, not to any party, regime or those who seek to steal elections,” he said.
