ISRO launches its heaviest satellite on ‘Bahubali’ rocket
Bengaluru: Indian Space Research Organisation (ISRO) on Wednesday successfully launched its heaviest satellite to date, marking a major milestone in India’s space programme.
According to a report published by The New Indian Express, the Launch Vehicle Mark-3 (LVM3)-M6 rocket lifted off with the 6.10-tonne BlueBird-6 Block-2 communication satellite of US-based AST SpaceMobile (AST and Science, LLC) and released it accurately in the 518.50 km altitude circular Low Earth Orbit (LEO).
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The launch took place at 8.55 am and the satellite released in its orbit at 9.11 am in what ISRO scientists described as a “textbook launch”.
ISRO Chairman V Narayanan reportedly said this was the third commercial launch using the LVM3 rocket and the first time it was used exclusively for a foreign communication satellite. He said that this mission was also the ninth launch mission of the LVM3, with all launches so far being successful.
Until now, ISRO’s heaviest launch was the 4.40-tonne GSAT-7R satellite placed in orbit in November 2025 for the Indian Navy. The BlueBird-6 satellite now surpasses that record, making it the heaviest payload launched by ISRO.
Explaining the BlueBird Block-2 Mission, the team said the satellite, which will be a part of a constellation of other similar satellites under the mission will provide faster 4G and 5G services and video calls. It also aims at enhancing network connectivity with locations where there were hassles earlier. AST SpaceMobile has launched five satellites, Bluebird 1-5 in September 2024, which provide continuous coverage across the US and other select countries.
As per the report, the LVM3-M6 has injected the satellite in the 518.50 km circular LEO orbit at a 53-degree inclination to the equator. It is just 1.5 km lower than the designated orbit, and is considered accurate. This precise placement is also an achievement marked by the ISRO team, said Narayanan.
The satellite had arrived at Sriharikota in October, and the launch was earlier postponed due to technical reasons before being successfully carried out on December 24, officials said.
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Supreme Court strikes down Trump's sweeping tariffs, upending central plank of economic agenda
Washington (AP): The Supreme Court struck down President Donald Trump's far-reaching global tariffs on Friday, handing him a significant loss on an issue crucial to his economic agenda.
The 6-3 decision centres on tariffs imposed under an emergency powers law, including the sweeping “reciprocal” tariffs he levied on nearly every other country.
It's the first major piece of Trump's broad agenda to come squarely before the nation's highest court, which he helped shape with the appointments of three conservative jurists in his first term.
The majority found that the Constitution “very clearly” gives Congress the power to impose taxes, which include tariffs. “The Framers did not vest any part of the taxing power in the Executive Branch,” Chief Justice John Roberts wrote.
Justices Samuel Alito, Clarence Thomas and Brett Kavanaugh dissented.
“The tariffs at issue here may or may not be wise policy. But as a matter of text, history, and precedent, they are clearly lawful,” Kavanaugh wrote in the dissent.
The majority did not address whether companies could get refunded for the billions they have collectively paid in tariffs. Many companies, including the big-box warehouse chain Costco, have already lined up for refunds in court, and Kavanaugh noted the process could be complicated.
“The Court says nothing today about whether, and if so how, the Government should go about returning the billions of dollars that it has collected from importers. But that process is likely to be a mess,' as was acknowledged at oral argument,” he wrote.
The tariffs decision doesn't stop Trump from imposing duties under other laws. While those have more limitations on the speed and severity of Trump's actions, top administration officials have said they expect to keep the tariff framework in place under other authorities.
The Supreme Court ruling comes despite a series of short-term wins on the court's emergency docket that have allowed Trump to push ahead with extraordinary flexes of executive power on issues ranging from high-profile firings to major federal funding cuts.
The Republican president has been vocal about the case, calling it one of the most important in US history and saying a ruling against him would be an economic body blow to the country. But legal opposition crossed the political spectrum, including libertarian and pro-business groups that are typically aligned with the GOP. Polling has found tariffs aren't broadly popular with the public, amid wider voter concern about affordability.
The Constitution gives Congress the power to levy tariffs. But the Trump administration argued that a 1977 law allowing the president to regulate importation during emergencies also allows him to set tariffs. Other presidents have used the law dozens of times, often to impose sanctions, but Trump was the first president to invoke it for import taxes.
Trump set what he called "reciprocal" tariffs on most countries in April 2025 to address trade deficits that he declared a national emergency. Those came after he imposed duties on Canada, China and Mexico, ostensibly to address a drug trafficking emergency.
A series of lawsuits followed, including a case from a dozen largely Democratic-leaning states and others from small businesses selling everything from plumbing supplies to educational toys to women's cycling apparel.
The challengers argued the emergency powers law doesn't even mention tariffs and Trump's use of it fails several legal tests, including one that doomed then-President Joe Biden's USD 500 billion student loan forgiveness program.
The economic impact of Trump's tariffs has been estimated at some USD 3 trillion over the next decade, according to the Congressional Budget Office. The Treasury has collected more than USD 133 billion from the import taxes the president has imposed under the emergency powers law, federal data from December shows.
