Wednesday November 22, 2017

‘Saraswati’ : Indian Scientists Discover huge supercluster of Galaxies

An Indian scientist has successfully discovered a new supercluster of galaxies that he has named 'Saraswati'

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Saraswati
Earth is part of the Milky way galaxy. Wikimedia
  • A team of Indian astronomers has detected a huge supercluster of galaxy that they have named ‘Saraswati’
  • This newly discovered galaxy is said to be as big as 20 million billion suns
  • 4,000 million light years away from Earth, the Saraswati is Earth’s largest neighborhood structure

July 14, 2017: A huge supercluster of galaxies was discovered by astronomers from India. The galaxy, named ‘Saraswati’, is as big as 20 million billion suns.

The newly discovered galaxy is the largest known structure in the neighborhood of the universe. It is approximately 4,000 million light-years away from the Earth. It is more than 10 billion years old. The mass of the galaxy extends over 600 million light years.

The team members include Pratik Dabhade, a research fellow at Inter-University Centre for Astronomy and Astrophysics (IUCAA), Shishir Sankhyayan, a student at Indian Institute of Science Education and Research (IISER), Joe Jacob, a student at Kerala’s Newman College and lastly Prakash Sarkar from National Institute of Technology, Jamshedpur.

ALSO READAstronomers Spot Primitive ‘Little Cub’ Galaxy that may Shed Light on Early Universe

The team’s research has been published in the Astrophysical Journal which is a prestigious Journal of the American Astronomical Society.

The team analyzed the data from Sloan Digital Sky Survey, a large spectroscopic survey of different galaxies.

It is estimated that there are 10 million superclusters in the whole universe. The milky way galaxy, where our planet Earth lives, is the part Laniakea cluster.

– by Saksham Narula of NewsGram. Twitter: @Saksham2393

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Dalai Lama says that India and China have great potential

The spiritual leader feels that both the countries are doing compassionate works

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Dalai Lama talks about India and China
Tibetan spiritual leader Dalai says that India and China can work together. VOA

New Delhi, Nov 19

Tibetan spiritual leader the Dalai Lama on Sunday said India and China have “great potential” and they could work together at a “practical level”.

“I think, a great potential… India and China combined are doing more compassionate work… At a practical level also. Imagine two billion people working together,” he told reporters here after inaugurating Smile Foundation’s initiative, The World of Children.

The spiritual leader, who has lived in India in self-imposed exile since 1959, said neither country had the “ability to destroy the other”.

“Whether you like it or not, you have to live side by side,” he said.

Underlining the ancient spiritual connection between the two countries, he said Chinese Buddhist Hsuan Tsang visited Nalanda (now in Bihar) and brought Nalanda Buddhist traditions to China.

“All thinkers of Nalanda are Indian. So Nalanda’s tradition is India’s tradition,” he said.

The Nalanda traditions had turned Tibetans, who were warriors, into more compassionate, peaceful and non-violent nation, he said.

“So sometimes in Delhi, teasing my Indian friend, (I say) if Tibet still remained in the previous way of life, like Mongols, Chinese invasion may not have taken place,” the Dalai Lama said in a lighter vein.

He said nobody in the world wanted violence but it was happening “because our minds are dominated by destructive emotions due to short-sightedness”.

“Nobody wants problems. Yet, many problems are our own creation.”

The Dalai Lama said the existing modern education was oriented to material values. India can take lead in improving the education system by combining modern education with ancient knowledge, he said. (IANS)

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Manushi Chhillar from India Wins the Miss World 2017 Title

India's Manushi Chillar won the coveted Miss World 2017 pageant here, 16 years after Priyanka Chopra won the title in 2000.

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Manushi Chhillar has been crowned as Miss World 2017. Instagram #ManushiChhillar

China, November 19: India’s Manushi Chhillar won the coveted Miss World 2017 pageant, 16 years after Priyanka Chopra won the title in 2000.

Chhillar competed against 108 contestants from various countries at a glittering event held at Sanya City Arena here.

Miss World 2016 winner Puerto Rico’s Stephanie Del Valle gave away the coveted crown to the winner.

Chhillar, who is from Haryana, had earlier this year won the Femina Miss India 2017.

Miss world
Anti Ageing was the official skin care expert for Manushi Chhillar at the Miss World 2017 pageant. Instagram #ManushiChhillar

India, England, France, Kenya and Mexico grabbed the top five spots at the peagant.

Manushi, born to doctor parents, studied in St. Thomas School in New Delhi and Bhagat Phool Singh Government Medical College for Women in Sonepat.

Her entire family including brother and sister were present and they looked excited watching Manushi grabbing top five spot.

As many as 108 beauty queens from different parts of the world participated in the prestigious pageant. (IANS)

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Astronomers Discover the ‘Biggest Stellar Puzzle’, Bizarre Star that Refuses to Die

The study calculated that the star that exploded was at least 50 times more massive than the Sun and probably much larger.

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This star shines brighter every time it explodes. Read to know more! (representative image) Wikimedia

New York, November 9, 2017 : An international team of astronomers has made a bizarre discovery – a star that refuses to stop shining despite exploding more than once over a period of 50 years.

The explosions of stars, known as supernovae, have been observed in the thousands and in all cases they marked the death of a star.

But a new study, published in the journal Nature, challenges known theories about the death of stars. Their observations included data from Keck Observatory on Maunakea in Hawaii.

“The spectra we obtained at Keck Observatory showed that this supernova looked like nothing we had ever seen before. This, after discovering nearly 5,000 supernovae in the last two decades,” said study co-author Peter Nugent from Lawrence Berkeley National Laboratory in the US.

ALSO READ Giant planet orbiting a small star find stuns scientists: NGTS Survey

“While the spectra bear a resemblance to normal hydrogen-rich core-collapse supernova explosions, they grew brighter and dimmer at least five times more slowly, stretching an event which normally lasts 100 days to over two years,” Nugent said.

The supernova, named iPTF14hls, was discovered in September 2014 by the Palomar Transient Factory. At the time, it looked like an ordinary supernova.

Several months later, astronomers at Las Cumbres Observatory in the US noticed the supernova was growing brighter again after it had faded.

When astronomers went back and looked at archival data, they were astonished to find evidence of an explosion in 1954 at the same location.

This star somehow survived that explosion and exploded again in 2014.

“This supernova breaks everything we thought we knew about how they work. It’s the biggest puzzle I’ve encountered in almost a decade of studying stellar explosions,” said lead author Iair Arcavi, a NASA Einstein postdoctoral fellow at LCO and the University of California Santa Barbara.

The study calculated that the star that exploded was at least 50 times more massive than the Sun and probably much larger.

Supernova iPTF14hls may have been the most massive stellar explosion ever seen. The size of this explosion could be the reason that conventional understanding of the death of stars failed to explain this event.

Astronomers continue to monitor the supernova, which remains bright three years after it was discovered. (IANS)