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PSLV-C58 XPoSat: India launches satellite to study black holes from Sriharikota

On January 1, the PSLV-C58 rocket took off at 9.10 a.m. from this spaceport’s first launch pad, which is situated around 135 kilometres east of Chennai.

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The Indian Space Research Organisation successfully launched India’s first X-Ray Polarimeter Satellite on Monday, or XPoSat, from the Satish Dhawan Space Centre in Sriharikota. The satellite is designed to provide information about celestial objects such as black holes. It was carried into space by a Polar Satellite Launch Vehicle rocket.

According to the ISRO, the PSLV-C58 rocket successfully launched payload XPoSat into Low Earth Orbit on its 60th flight.

On January 1, the PSLV-C58 rocket took off at 9.10 a.m. from this spaceport’s first launch pad, which is situated around 135 kilometres east of Chennai.

It is the first specifically designed ISRO scientific satellite to conduct studies on polarisation measurements of X-ray radiation from astronomical sources from space.

Aeronautics and Space Agency (NASA) studied supernova explosion remnants, black hole particle streams, and other cosmic occurrences in December 2021 with the Imaging X-Ray Polarimetry Explorer mission.

Although India has established space-based X-ray astronomy with an emphasis on imaging and time domain investigations, the space agency stated that Monday’s mission represents a significant contribution to the scientific community.

In order to conduct long-term spectral and temporal investigations of cosmic X-ray sources, the PSLV-C58 mission aims to measure the polarisation of X-rays in the energy band 8-30 keV emitted by about 50 possible cosmic sources.

When analysing the radiation process and geometry of astronomical sources, X-ray polarisation is an essential diagnostic tool. POLIX (Polarimeter Instrument in X-Rays), developed by the Raman Research Institute to determine polarimetry parameters, and XSPECT (X-ray Spectroscopy and Timing), constructed by the U R Rao Satellite Centre, Bengaluru, are the main payloads of XPoSat.

With the launch of its first X-Ray Polarimeter satellite, the ISRO ushered in the new year. Following the success of the Gaganyaan Test Vehicle D1 mission in October, the launch occurred.

India achieved unprecedented achievement in 2023 with the gentle landing of Chandrayaan-3 on the Moon’s south pole and the launch of Aditya-L1, the country’s first solar mission.

Following the momentous August 23 landing of Vikram Lander on the Moon, the Pragyan rover was sent out to explore the lunar south pole, which had not before been explored.

India’s current objectives include the Gaganyaan Mission, establishing Bharatiya Antariksha Station by 2035, and sending the country’s first person to the moon by 2040.

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Rahul Gandhi, Rajnath Singh clash in Lok Sabha over ex-Army chief’s unpublished book on Ladakh

Lok Sabha proceedings were disrupted after Rahul Gandhi cited an unpublished book by former Army chief General MM Naravane on the Ladakh stand-off, drawing objections from Rajnath Singh and other BJP leaders.

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Rahul Gandhi

A sharp confrontation unfolded in the Lok Sabha on Monday after Leader of Opposition Rahul Gandhi referred to an unpublished book by former Army chief General MM Naravane while speaking on the 2020 India-China Ladakh stand-off, prompting strong objections from treasury benches.

Rahul Gandhi began his address by holding a printout of a magazine article that carried an essay on General Naravane’s yet-to-be-published memoir, Four Stars of Destiny. The reference immediately drew an intervention from Defence Minister Rajnath Singh, who objected to the citation, saying quoting an unpublished book violated parliamentary rules.

Objections from treasury benches

Rajnath Singh demanded that the Leader of Opposition place the book before the House, arguing that since the memoir had not been formally published, its contents could not be cited during proceedings. The objection was echoed by Home Minister Amit Shah, who questioned how references could be made to material that was not publicly available.

Parliamentary Affairs Minister Kiren Rijiju went a step further, suggesting that the House should deliberate on action against members who do not comply with the Speaker’s rulings.

As Rahul Gandhi persisted, repeatedly referring to “Chinese tanks” while discussing the eastern Ladakh situation, the opposition from BJP members intensified, leading to sustained disruptions.

Opposition support and continued disruptions

Samajwadi Party chief Akhilesh Yadav backed Rahul Gandhi, stating that issues concerning China were sensitive and that the Leader of Opposition should be allowed to present his views in the House.

Responding to the objections, Rahul Gandhi questioned the resistance to his remarks, asking what in the book was causing such concern. He maintained that both the article and the contents he was quoting were “100 per cent authentic.”

The Congress leader also said he had not intended to raise the issue but felt compelled to do so after BJP MP Tejasvi Surya questioned the patriotism of the Congress and its leadership.

Government, Congress trade charges

Government sources accused Rahul Gandhi of setting a dangerous precedent by citing material from an unpublished book, alleging that such references could be misused to make unverified claims on the floor of Parliament.

Congress MP Priyanka Gandhi defended her brother, saying he was not attempting to defame the Army and was merely reading an excerpt attributed to the former Army chief. She accused the ruling party of resisting discussion whenever uncomfortable issues surfaced.

House adjourned amid chaos

The repeated interruptions forced Lok Sabha Speaker Om Birla to adjourn the House till 3 pm. When proceedings resumed, similar scenes played out as Rahul Gandhi again attempted to speak on the subject, leading to further disruptions and another adjournment.

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P Chidambaram avoids commenting on Trump’s dead economy remark echoed by Rahul Gandhi

Chidambaram stays silent on Trump’s ‘dead economy’ remark echoed by Rahul Gandhi as Congress critiques Union Budget 2026.

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P Chidambaram

Finance Minister Nirmala Sitharaman on Sunday presented her ninth consecutive union budget, stopping just short of Morarji Desai’s record of ten.

Congress MP P Chidambaram, however, avoided commenting on the ‘India is a dead economy’ statement made by former US President Donald Trump last July, which was later echoed by Rahul Gandhi.

Speaking to reporters after reviewing the budget, Chidambaram said he could not respond as he lacked the full context of Trump’s original remarks.

The comment by Trump followed India’s continued purchase of Russian crude oil, which the US had criticized as indirectly funding military action in Ukraine. Trump imposed a 25 per cent penalty tariff on Indian imports and added: “I don’t care what India does with Russia. They can take their dead economies down together, for all I care.”

Rahul Gandhi later supported the statement, saying, “He is right, everybody knows this except the Prime Minister and Finance Minister. I am glad President Trump stated a fact…”

The remark sparked a political debate, with BJP leaders criticizing Gandhi, while some Congress members, including Rajya Sabha MP Rajiv Shukla, called the statement “completely wrong.”

Ahead of the budget, Gandhi had highlighted the impact of US tariffs on small textile businesses, noting on X: “50 per cent US tariffs are badly hurting textile exporters. Job losses, shutdowns… are reality of our ‘dead economy’.”

The debate gained traction following the budget announcement, which did not offer immediate relief to middle-class taxpayers and saw markets react sharply, with the Sensex closing 1,500 points lower on Sunday.

Chidambaram, as usual, led Congress’ critique of the budget, pointing to a decrease in capital expenditure as a percentage of GDP from 3.2 per cent in FY25 to 3.1 per cent, despite the proposal of Rs 12.2 lakh crore for capex. He added, “Revenue receipts short by Rs 78,086 crore… total expenditure short by Rs 1,00,503 crore… revenue expenditure short by Rs 75,168 crore… capex was cut by Rs 1,44,376 crore… not a word was said to explain this…”

Rahul Gandhi echoed the criticism, highlighting issues such as unemployment, farmers’ distress, declining household savings, and low investment. “A budget that refuses course correction and is blind to India’s real crises,” he said on X.

Responding to the criticism, Finance Minister Sitharaman said, “With due respects, I don’t know what course correction he is referring to. The economy and its fundamentals are strong.”

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Earthquake of 4.6 magnitude hits Andaman and Nicobar Islands

A 4.6 magnitude earthquake struck the Nicobar Islands at 10 km depth, highlighting the region’s seismic activity and potential risks from shallow tremors.

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An earthquake measuring 4.6 on the Richter scale struck the Andaman and Nicobar Islands early Monday at around 3:30 am, the National Center of Seismology (NCS) reported.

According to the NCS, the tremor occurred at a shallow depth of 10 km. The earthquake’s epicenter was located at a latitude of 9.03° North and a longitude of 92.78° East, placing it in the Nicobar Islands region.

In a post on X, the NCS confirmed the details: “EQ of M: 4.6, On: 02/02/2026 03:31:12 IST, Lat: 9.03 N, Long: 92.78 E, Depth: 10 Km, Location: Nicobar Islands.”

The Andaman and Nicobar Islands fall under Seismic Zone V, according to India’s seismic zoning map (1893-1984), making them one of the most earthquake-prone regions in the world. Historically, the islands have experienced several major earthquakes, including the devastating tremor on December 26, 2004, which caused significant land displacement and triggered tsunami waves, resulting in heavy loss of life and property.

Experts note that shallow earthquakes, like the one recorded on Monday, can be more hazardous than deeper ones. Seismic waves from shallow quakes travel a shorter distance to the surface, causing stronger ground shaking and posing higher risks to structures and human safety.

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