India has capability to set up space station, says ISRO chief

india Updated: Feb 21, 2017 01:29 IST

PTI, Indore

ISRO chairman Kiran Kumar Rao (R) displays models of the CARTOSAT-2 and Polar Satellite Launch Vehicle (PSLV-C37) as he speaks to media after the launch of the Polar Satellite Launch Vehicle (PSLV-C37) at Sriharikota on Febuary 15.(AFP Photo)

ISRO chairman AS Kiran Kumar on Monday said the country has the capability to set up a space station, but it needed a long-term approach and an ambitious planning.
His comment follows Indian Space Research Organisation (ISRO) display of technological prowess last week by launching 104 satellites in a single mission.
“We have all the capabilities to set up a space station. The day the country takes the decision, we will ‘ok’ the project. Just draw a policy and provide us necessary funds and time,” Kumar said here.
He was in the city to attend the foundation day ceremony of Raja Ramanna Center for Advanced Technology (RRCAT).
“We still talk about what would be the immediate benefits of a manned space mission. That is why the country hasn’t made up its mind about when to invest in a space station,” he said.
A long-term thinking was needed for setting up a space station, he said, adding “the sooner the better.”
Kumar said ISRO was also mulling tying up with the industry to enhance the country’s satellite launching capability.
Many more satellites were needed to keep a tab on the land and weather conditions and to enhance the communication network, he said.
This would be possible with increase in the number of satellite launches, for which the country needed to enhance the basic infrastructure and reduce the cost of equipment, he added.
The number of companies manufacturing small satellites has gone up across the world, but these companies could not launch them, therefore this area had immense commercial potential and India could tap it by enhancing the launch facilities, the ISRO chief said.

hole story of star and formations

Black hole fuels star formation?

IANS

New York February 16, 2017 00:00 IST

Updated: February 16, 2017 03:31 IST

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The researchers found that powerful radio jets from the black hole are stimulating the production of cold gas in the galaxy’s extended halo of hot gas. This supply of cold gas could eventually fuel future star birth

In a surprising discovery, astronomers have observed a black hole producing cold, star-making fuel from hot plasma jets and bubbles.
The researchers found that powerful radio jets from the black hole — which normally suppress star formation — are stimulating the production of cold gas in the galaxy’s extended halo of hot gas.
This newly identified supply of cold, dense gas could eventually fuel future star birth as well as feed the black hole itself, said the study published in the Astrophysical Journal .
The researchers studied a galaxy at the heart of the Phoenix Cluster, an uncommonly crowded collection of galaxies about 5.7 billion light-years from Earth.
The team analysed observations of the Phoenix cluster gathered by the Atacama Large Millimeter Array (ALMA), a collection of 66 large radio telescopes spread over the desert of northern Chile. The researchers believe that the new findings may help explain the Phoenix cluster’s exceptional star-producing power. They may also provide new insights into how supermassive black holes and their host galaxies mutually grow and evolve.
“With ALMA we can see that there’s a direct link between these radio bubbles inflated by the supermassive black hole and the future fuel for galaxy growth,” said study lead author Helen Russell, an astronomer with the University of Cambridge in Britain.

What the researchers believe to be happening is that, as jets inflate bubbles of hot gas near the black hole, they drag behind them a wake of slightly cooler gas.

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The bubbles eventually detach from the jets and float further out into the galaxy cluster, where each bubble’s trail of gas cools, forming long filaments of extremely cold gas that condense and rain back onto the black hole as fuel for star formation.IANS

Next destination may be planet Venus[why not carry a valentine's card from mars(man) to venus?

Next destination may be planet Venus: Isro chairman

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Indian teen discovers cheap way to make saltwater drinkable

An Indian-American student has found a cheaper and easier method to turn salt water into drinkable fresh water and his research has caught the attention of major technology firms and universities.

By: PTI | San Francisco | Published: February 5, 2017 1:48 PM

The Jesuit High School Senior told KPTV that he has big plans of changing the world. “1 in 8 people do not have access to clean water, it’s a crying issue that needs to be addressed,” said Karamchedu. (Reuters)

An Indian-American student has found a cheaper and easier method to turn salt water into drinkable fresh water and his research has caught the attention of major technology firms and universities. Chaitanya Karamchedu from Portland, Oregon, is turning heads across the country all because of a science experiment that began in his high school classroom.
The Jesuit High School Senior told KPTV that he has big plans of changing the world. “1 in 8 people do not have access to clean water, it’s a crying issue that needs to be addressed,” said Karamchedu.
He made up his mind to address the matter himself.
“The best access for water is the sea, so 70 per cent of the planet is covered in water and almost all of that is the ocean, but the problem is that’s salt water,” said Karamchedu.
Isolating drinkable water from the ocean in a cost effective way is a problem that has stumped scientists for years.
“Scientists looked at desalination, but it’s all still inaccessible to places and it would cost too much to implement on a large scale,” Karamchedu said. Karamchedu figured it out, on his own, in a high school lab.
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“The real genesis of the idea was realising that sea water is not fully saturated with salt,” he was quoted as saying.
By experimenting with a highly absorbent polymer, the teen discovered a cost effective way to remove salt from ocean water and turn it into fresh water.
“It’s not bonding with water molecules, it’s bonding to the salt,” said Karamchedu.
“People have been looking at the problem from one view point, how do we break those bonds between salt and the water? Chai came in and thought about it from a completely different angle,” said Jesuit High School Biology Teacher Dr. Lara Shamieh.
“People were concentrated on that 10 per cent of water that’s bonded to the salt in the sea and no one looked at the 90 per cent that was free. Chai just looked at it and said if 10 per cent is bonded and 90 per cent is free, then why are we so focused on this 10 per cent, let’s ignore it and focus on the 90,” Shamieh said.
It is a breakthrough that is estimated to impact millions of lives if ever implemented on a mass scale.
“What this is compared to current techniques, is that it’s cheap and accessible to everyone, everyone can use it,” said Shamieh.
Scientists across the country are taking note. He won a USD 10,000 award from the US Agency for International Global Development at Intel’s International Science Fair and second place at MIT’s TechCon Conference where he won more money to continue his research.
“They were very encouraging, they could see things into it that I couldn’t, because they’ve been working their whole lives on this,” said Karamchedu.
Back in January, Karamchedu was also named one of 300 Regeneron Science Talent Search Semifinalists. The STS is thought to be one of the most prestigious competitions in the country for high school seniors.