Bengaluru, Mar 21: India needs to strive towards mastering reusable rocket technology, give thrust to global marketing and learn from SpaceX founder Elon Musk's business model to tap full potential in the space field, eminent space scientist G Madhavan Nair has advocated.

The former Chairman of Indian Space Research Organisation (ISRO) said there is a vast scope to launch foreign satellites and also provide space-related services in the global market.

"We (India) have basic technology, capability to launch earth observation and communication platforms. But we have missed the opportunity in global marketing," Nair told PTI.

India offers satellite launch services at 30 to 40 per cent lower costs compared to international prices, according to him.

"Naturally, there is a good potential for capturing more and more of launches from countries which have no such capability", he said.

"So, there one has to go aggressively and get that market share".

He said Musk has revolutionised space technology by going in for reusable launch vehicle system.

"In fact, India has been talking about it (reusable launch vehicle) for the last 15-20 years, but we have not made headway into it", Nair said.

"Unless we go for recoverable and reusable launch systems, we cannot reduce the (space transportation) cost.

That's one area which needs a thrust".

India cannot be complacent in the field of space, where technology is changing very fast -- in earth observation and communication systems and launch services, he said.

Lot of innovations and concepts are emerging and India needs to keep abreast of them.

"If we don't use these opportunities, we will lag behind.

Living on past glory is not going to help us".

Communication areas such as higher band and digital connectivity needs lot of technology development in which India is somehow not able to pump in resources, he said.

Nair praised Musk for his leadership, vision and innovative management techniques and said India can learn from his business strategy.

He said Musk's life-story reminds him about his early professional days when Vikram Sarabhai, regarded as the father of the Indian space programme, used to dream big and motivate youngsters to put in extra efforts to reach the goal.

"But today that type of scenario is not there and more of a bureaucratic control is coming in", Nair said.

On reforms in the space sector initiated by the Government in June last year, he expressed the view it's no more than reconfiguring of ISRO structure.

"Somehow, people get carried away by so-called commercialisation, forgetting the Research and Development part of it", Nair added.

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Hong Kong, Oct 25: Amnesty International said Monday it would close its two offices in Hong Kong this year, becoming the latest non-governmental organization to cease its operations amid a crackdown on political dissent in the city.

The human rights group said its local office in Hong Kong would close this month while its regional office will close by the end of the year, with regional operations moved to other offices in the Asia-Pacific region.

This decision, made with a heavy heart, has been driven by Hong Kong's national security law, which has made it effectively impossible for human rights organizations in Hong Kong to work freely and without fear of serious reprisals from the government, Anjhula Mya Singh Bais, chair of Amnesty's board, said in a statement.

Hong Kong implemented a sweeping national security law in 2020 following months of massive anti-government protests. The law outlaws secession, subversion of state power, terrorism and foreign collusion to intervene in the city's affairs. More than 120 people, many of them supporters of the city's democracy movement, have been arrested under the law.

The majority of the city's prominent pro-democracy activists are behind bars for taking part in unauthorized assemblies, and dozens of political organizations and trade unions have ceased operations out of concern for their members' personal safety under the security law.

Bais said the recent targeting of local human rights and trade union groups signaled authorities were intensifying their campaign to rid the city of dissenting voices. It is increasingly difficult for us to keep operating in such an unstable environment, she said.

Critics in Hong Kong say the national security law is an erosion of freedoms, such as those of expression and assembly, that were promised the city for 50 years when the former British colony was handed over to China in 1997.