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Soviet-era Cosmos-482 crashes over Indian Ocean after half a century in space

Soviet-era Cosmos-482 crashes over Indian Ocean after half a century in space

India Today11-05-2025

A Soviet spacecraft launched more than half a century ago has finally returned to Earth, ending a decades-long odyssey with a dramatic but harmless plunge into the Indian Ocean.The probe, known as Kosmos 482 or Cosmos 482, re-entered Earth's atmosphere in the early hours of Saturday, coming down about 560 kilometers west of India's Middle Andaman Island, according to Russia's space agency Roscosmos.advertisementLaunched in March 1972, Kosmos 482 was originally intended to land on Venus as part of the Soviet Union's ambitious Venera program. However, a malfunction during launch left the nearly 500-kilogram spacecraft stranded in an elliptical Earth orbit, where it remained for 53 years, slowly losing altitude due to atmospheric drag.
The probe's return to Earth had been closely monitored by multiple space agencies, including the European Space Agency (ESA) and the European Union's Space Surveillance and Tracking network.The ESA confirmed the reentry after the spacecraft failed to appear over a German radar station, signaling that it had already descended into the atmosphere.Kosmos 482 was designed to survive the extreme conditions of Venus, featuring a robust titanium shell. This led scientists to predict that parts of the spacecraft might survive reentry and reach the ocean's surface nearly intact.advertisementFortunately, no damage or injuries have been reported, and there are no confirmed sightings of debris on land.Experts emphasise that the risk to people on the ground from such uncontrolled reentries remains extremely low. The Aerospace Corporation estimated the odds of a person being harmed by Kosmos 482 at less than one in a million, well within international safety limits.Under international space law, any remains of the spacecraft would legally remain the property of Russia.The uneventful conclusion of Kosmos 482's journey highlights both the enduring legacy of early space exploration and the growing importance of monitoring aging space debris as human activity in orbit increases.

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Tetrapodophis: The 120 million-year-old four-footed snake-discovery and controversy
Tetrapodophis: The 120 million-year-old four-footed snake-discovery and controversy

Time of India

time15 hours ago

  • Time of India

Tetrapodophis: The 120 million-year-old four-footed snake-discovery and controversy

Credit: Instagram/@ In 2015, a fossil unearthed in a German museum collection set the world abuzz. The specimen, Tetrapodophis amplectus, Latin for "four-footed snake," was hailed as the first documented four-limbed snake. If confirmed, it would be a landmark item of evolutionary history, filling in the gap between early lizards and contemporary snakes. Though the find has since been clouded with scientific controversy and legal entanglement, questioning not just evolutionary theory but ethics involved in fossil acquisition as well. ( source: Wikipedia ) A unique fossil, like no other Approximately 20 centimeters in length, Tetrapodophis's fossil contains more than 150 vertebrae, a truncated tail, and a snake-like elongated body. The novel aspects of the fossil were its minute but intact fore- and hindlimbs, both with five digits, coupled with traits such as hooked teeth, a flexible skull, and prey remains in its stomach, indicating a carnivorous diet. The fossil was published in the journal Science by Dr. David Martill and colleagues, who ruled out the possibility that it came from a marine reptile, concluding instead that it was direct evidence of how snakes evolved from burrowing lizards. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like 5 Books Warren Buffett Wants You to Read In 2025 Blinkist: Warren Buffett's Reading List Undo Tetrapodophis is estimated to have existed between 113 and 120 million years ago during the Early Cretaceous, according to Martill, and was probably suited to living on land. Scientific evidence suggests While the early excitement was palpable, however, most within the field of paleontology questioned the fossil's categorization. In 2016 and once more in 2021, paleontologist Dr. Michael Caldwell of the University of Alberta spearheaded the re-examination of the specimen. His research group contended that Tetrapodophis did not possess several central anatomical features common in true snakes. Among the features being questioned were the skull's structure, which did not have the movable joints and cranial kinesis characteristic of snakes; the vertebrae, which did not show the articulations characteristic of snakes and fossils; and the limb and rib morphology in general, which was similar to that of aquatic lizards called dolichosaurs. What humongous secrets science can uncover is truly fascinating. Caldwell and others suggested that the specimen had been incorrectly identified and was a member of the family Dolichosauridae, an extinct group of marine reptiles more closely related to mosasaurs than to early snakes. The scientific controversy served to illustrate a long-standing debate in paleontology: did snakes evolve from terrestrial lizards or from marine ancestors? Tetrapodophis became the center of this broader question. Legal disputes over a fossil? Know why Complicating matters was the dodgy provenance of the fossil. It was in a German private collection, but it was thought by many to have come from the Crato Formation in northeastern Brazil a place famous for its Early Cretaceous fossils. Brazil strictly prohibits the unauthorized exportation of fossils as national heritage. The release of the 2015 paper attracted severe criticism from Brazilian paleontologists and authorities, who argued that the fossil was exported illegally from the country. The controversy triggered further debate concerning the morality of fossil collection and the role of academic journals in ensuring specimens are legal. In 2024, following years of diplomatic pressure, the owners of the fossil consented to the repatriation of Tetrapodophis to Brazil. It was subsequently moved to the National Museum in Rio de Janeiro, where it will be examined further by Brazilian scientists. Update? Up to 2025, there has been no scientific agreement on Tetrapodophis's actual classification. A 2023 reclassification in the group of stem-snakes—animals that constitute a common ancestor with the contemporary snakes but belong outside the group has yet to convince most scientists, as they argue the necessity of further fossil records and adult specimens. The case of Tetrapodophis remains unresolved, not only as a paleontological puzzle but also as a case study in ethics, international law, and the evolving nature of science itself. It reminds us of the dramatic and sometimes contentious interaction between science, law, and heritage. More significantly, it reminds us of how a single fossil can disprove long-held theories, invoke global legal action, and realign the global debate on scientific accountability.

Rakesh Sharma to Shubhanshu Shukla—India's space programme is entering a bold new era
Rakesh Sharma to Shubhanshu Shukla—India's space programme is entering a bold new era

The Print

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Rakesh Sharma to Shubhanshu Shukla—India's space programme is entering a bold new era

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During the Cold War, between 1947 and 1991, the Soviet Union introduced the Intercosmos initiative to partner with allied and friendly countries. India got a chance to send an astronaut-designate as part of this deal. Sharma, who was a squadron leader back then, was also a test pilot with the IAF. This automatically qualified him as a possible applicant. But this was just the first step to a strenuous two-year training. He underwent several training rounds and beat over 150 candidates before his selection. The training involved facing high G-forces or gravitational force equivalents, sensory deprivation tests, and cardiovascular and vestibular stress simulations. 'But it was all worth it. No matter how hard you train, nothing can completely prepare you for space,' Sharma said in an earlier conversation with ThePrint. For Shukla, who was born a year after the Soviet mission, Sharma became a hero. 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Also read: Axiom-4 has venture capitalists looking skyward, but investment in space tech needs an attitude reset Setting the stage for Gaganyaan Sharma and Shukla's missions are starkly different—though equally significant—not only because of the countries leading them, but where they stand in history. Axiom-4, with Shukla as the mission pilot, comes at a time when the Indian space programme is powering through. It has already reached the Moon and aims to build its very own space station, Bharatiya Antariksh Station, by 2035. In the five years after that, India aims to land a human on the Moon. ISRO is also designing missions to explore Venus and Mars, and bring back samples from the Moon. With the Indian Space Policy 2023, the government has also opened the sector to private players. Astrophysicist and Ashoka University vice-chancellor Somak Raychaudhury said that learnings from Axiom-4 will help improve India's own human spaceflight. 'There would be a lot of tech and logistical learnings from the mission that we will be able to implement in Gaganyaan,' he added. The mission's impact will go beyond policy rooms, labs, and launch pads to classrooms, social media, and public discussions. Axiom-4 marks the beginning of India's space aspirations for the decades ahead. And Shukla has become the face of it. Views are personal. (Edited by Prasanna Bachchhav)

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