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Countless galaxies exist in the universe, each hiding secrets that humankind is yet to unearth. Pixabay

Astronomers using NASA’s Hubble Space Telescope have for the first time precisely measured the distance to one of the oldest objects in the universe — a collection of stars born shortly after the Big Bang. This stellar assembly, a globular star cluster called “NGC 6397”, is one of the closest such clusters to Earth. The new measurement sets the cluster’s distance at 7,800 light-years away, with just a three per cent margin of error.

This new distance yardstick provides an independent estimate for the age of the universe, the US space agency said in a statement on Thursday. The new measurement will also help astronomers improve models of stellar evolution.



Star clusters are the key ingredient in stellar models because the stars in each grouping are at the same distance, have the same age, and have the same chemical composition. The new measurement uses straightforward trigonometry, the same method used by surveyors, and as old as classical Greek science. The research team calculated NGC 6397’s age at 13.4 billion years old. “The globular clusters are so old that if their ages and distances deduced from models are off by a little bit, they seem to be older than the age of the universe,” said Tom Brown of the Space Telescope Science Institute (STScI) in Baltimore, Maryland

The researchers say they could reach an accuracy of one per cent if they combine the Hubble distance measurement of NGC 6397 with the upcoming results obtained from the European Space Agency’s Gaia space observatory.

Also Read: NASA to intensify focus on Earth’s frozen regions

“Getting to one per cent accuracy will nail this distance measurement forever,” Brown said. The findings appeared in The Astrophysical Journal Letters. IANS


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Logs cut from virgin Amazon rain forest are placed in a pile, in Brazil's northeastern Amazon region, February 11, 2008.

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Photo by Amy Elting on Unsplash

Let us educate each other that we are all beautiful in our way and don't need to fit in the so-called standards set by our draconian society.

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Beauty with a brain suggests that you can only have one of these qualities and that you are an 'exception' if you possess both. "Oh, Wow! You are a beauty with brains" is a phrase that women often hear. This statement is used when a female exhibits characteristics that indicate she is intelligent. People are taken aback if they see a wise and beautiful woman because women are stereotyped to be either beautiful or brainy. The concern with this is that it is naturally assumed that men are intelligent. Women, on the other hand, are supposed to have a natural beauty. If she isn't attractive according to the norms laid down by society, it is expected that she would at the very least be intelligent. When someone manages to be both, it is regarded as a significant accomplishment.

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"Malgudi is where we all belong, and where we wish we lived."

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R. K. Narayan, one of the most well-known and popular writers within India and outside India is the creator of this town and the occurrences of this town. The stories follow the characters Swami and his friends through their everyday lives. Be it the story of fake astrologers who scam and loot the people by his cleverness, or the story of a blind beggar and his dog where the money blinded the man with greed; each story has a lesson to learn, morals and values hidden in it. As the stories are simple, easy to understand yet heart-touching it makes it easy for the kids to connect with each character and imagine the story as if the reader themselves were the protagonist of the story. In simple words, we can say that R.K. Narayan simply told stories of ordinary people trying to live their simple lives in a changing world.

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