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September 2018
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News Headlines
Hasan, Asghar, Rashid fined 15 per cent of their match fees        Ready to be sacked if ATK do not fare well: Coppell        Sensex ends in red after 1,000-pt flash crash        OYO to hire over 2,000 tech experts, engineers by 2020        Thousands rally across Russia against raising pension age        Pak PM Imran hits out at India, calls its response "arrogant" for cancelling talks        Sisodia, AAP MLAs discharged in case related to 2014 protest        We have no role in selection of Reliance Defence for Rafale deal: Govt        Modi, Ambani carried out Rs 1.3 lakh cr 'surgical strike' on defence forces: Rahul on Rafale issue        Chekka Chivantha Vaanam: Second trailer released        Golden Globe Race: Indian Navy Officer Abhilash Tomy injured; INS Satpura dispatched for rescue        India Calls Off Talks With Pak, Says "Imran Khan's True Face Exposed"        Indian govt wanted Reliance for Rafale, we didn't have a choice: Ex-French prez Hollande        Wreckage of Captain Cook’s ship found off US coast        Death toll reaches 136 in Tanzania ferry disaster with scores missing        Ravindra Jadeja, Rohit Sharma take India to comprehensive 7-wicket win        Naomi Osaka Eases into WTA Tokyo Event Semi-final        Let the boundaries go away: Pakistani youth sings Jana Gana Mana with full respect        Three kidnapped cops killed by terrorists in Jammu and Kashmir        Freak penne trending with dislikes and trolls        
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International News
NASA probe set to uncover mysteries of rare 'relic galaxy'
 
(London, Mar 13, 2018): NASA's Hubble Space Telescope is set on an Indiana Jones-type quest to uncover a rare ancient "relic galaxy" hidden in our cosmic backyard that has remained unchanged for the past 10 billion years.

The wayward stellar island may provide valuable insights into the origin and evolution of galaxies billions of years ago.

The galaxy, NGC 1277, started its life with a bang long ago, ferociously churning out stars 1,000 times faster than seen in the Milky Way today.

However, it abruptly went quiescent as the baby boomer stars aged and grew ever redder.

Though Hubble has seen such "red and dead" galaxies in the early universe, one has never been conclusively found nearby.

Where the early galaxies are so distant, they are just red dots in Hubble deep-sky images. NGC 1277 offers a unique opportunity to see one up close and personal.

"We can explore such original galaxies in full detail and probe the conditions of the early universe," said Ignacio Trujillo, at the University of La Laguna in Spain.

The researchers learned that the relic galaxy has twice as many stars as our Milky Way, but physically it is as small as one quarter the size of our galaxy.

Essentially, NGC 1277 is in a state of "arrested development."

Perhaps like all galaxies it started out as a compact object but failed to accrete more material to grow in size to form a magnificent pinwheel-shaped galaxy.

About one in 1,000 massive galaxies is expected to be a relic galaxy, like NGC 1277, researchers said.

Massive galaxies tend to have both metal-poor (blue) and metal-rich (red) globular clusters.

The red clusters are believed to form as the galaxy forms, while the blue clusters are later brought in as smaller satellites are swallowed by the central galaxy.

However, NGC 1277 is almost entirely lacking in blue globular clusters.

"I've been studying globular clusters in galaxies for a long time, and this is the first time I've ever seen this," said Michael Beasley, from University of La Laguna.

The red clusters are the strongest evidence that the galaxy went out of the star-making business long ago. However, the lack of blue clusters suggests that NGC 1277 never grew further by gobbling up surrounding galaxies.

By contrast, our Milky Way contains about 180 blue and red globular clusters. This is due partly to the fact that our Milky Way continues cannibalising galaxies that swing too close by in our Local Group of a few dozen small galaxies.

It is a markedly different environment for NGC 1277. The galaxy lives near the centre of the Perseus cluster of over 1,000 galaxies, located 240 million light-years away.

However, NGC 1277 is moving so fast through the cluster, at two million miles per hour, that it cannot merge with other galaxies to collect stars or pull in gas to fuel star formation. In addition, near the galaxy cluster centre, intergalactic gas is so hot it cannot cool to condense and form stars.

The upcoming NASA James Webb Space Telescope - scheduled for launch in 2019 - will allow astronomers to measure the motions of the globular clusters in NGC 1277.

This will provide the first opportunity to measure how much dark matter the primordial galaxy contains.(PTI)


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Pak PM Imran hits out at India, calls its response "arrogant" for cancelling talks
Wreckage of Captain Cook’s ship found off US coast
Death toll reaches 136 in Tanzania ferry disaster with scores missing
Kim, Moon join hands on peak of sacred North Korean volcano
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Imran Khan govt auctions 70 luxury cars as part of austerity drive
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Japan's Abe expresses support for better Trump-Kim ties
Police: 1 man dead in North Las Vegas school shooting
Putin urges 'security guarantees' for NKorea denuclearisation
ENTERTAINMENT NEWS
Chekka Chivantha Vaanam: Second trailer released
 The second trailer of Mani Ratnam movie Chekka Chivantha Vaanam released. The trailer almost reveals  
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KERALA NEWS
Kannur International Airport: Kerala to be the first state with four international airports
 Malappuram: With Kannur International Airport becoming operational, Kerala will be the first state i
Bar bribery case: Court dismisses the vigilance report
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Actor Captain Raju passes away at 68
NATIONAL NEWS
Sisodia, AAP MLAs discharged in case related to 2014 protest
 New Delhi Sep 22 (PTI) A Delhi court on Saturday discharged Deputy Chief Minister Manish Sisodia, AA
We have no role in selection of Reliance Defence for Rafale deal: Govt
India Calls Off Talks With Pak, Says "Imran Khan's True Face Exposed"
Indian govt wanted Reliance for Rafale, we didn't have a choice: Ex-French prez Hollande
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