SCIENCE
It is a primitive cluster of stars just 500 million years old
NASA scientists have spotted the farthest known galaxy in the universe, a primitive cluster of stars just 500 million years old.
An intensive survey deep into the universe by NASA's Hubble and Spitzer space telescopes has yielded the image of the galaxy named SPT0615-JD, stretched and amplified by a phenomenon called gravitational lensing. Though a few other primitive galaxies have been seen at this early epoch, they have essentially all looked like red dots given their small size and tremendous distances. However, in this case, the gravitational field of a massive foreground galaxy cluster not only amplified the light from the background galaxy but also smeared the image of it into an arc. "No other candidate galaxy has been found at such a great distance that also gives you the spatial information that this arc image does," said Brett Salmon of the Space Telescope Science Institute in the US.
"By analysing the effects of gravitational lensing on the image of this galaxy, we can determine its actual size and shape," said Salmon. First predicted by Albert Einstein a century ago, the warping of space by the gravity of a massive foreground object can brighten and distort the images of far more distant background objects. Astronomers use this "zoom lens" effect to go hunting for amplified images of distant galaxies that otherwise would not be visible with today's telescopes. SPT0615-JD was identified in Hubble's Reionization Lensing Cluster Survey (RELICS) and companion S-RELICS Spitzer programme.
"RELICS was designed to discover distant galaxies like these that are magnified brightly enough for detailed study," said Dan Coe, Principal Investigator of RELICS. By combining the Hubble and Spitzer data, Salmon calculated the lookback time to the galaxy of 13.3 billion years. Preliminary analysis suggests the diminutive galaxy weighs in at no more than 3 billion solar masses. It is less than 2,500 light-years across
The object is considered prototypical of young galaxies that emerged during the epoch shortly after the Big Bang. The galaxy is right at the limits of Hubble's detection capabilities, but just the beginning for the upcoming NASA James Webb Space Telescope's powerful capabilities, said Salmon. "This galaxy is an exciting target for science with the Webb telescope as it offers the unique opportunity for resolving stellar populations in the very early universe," he said.
Subhash Ghai makes big investment, buys plush 4BHK apartment in Mumbai for...
Metovalex App Review 2025: Legit Or Scam Trading AI? - Real User Facts!
Thief gifts Rs 3cr house to girlfriend, everyone shocked after...
Who is Meghnad S? YouTuber and journalist who contested Delhi assembly polls 2025 from...
Does Sanya Malhotra's 'Mrs' promote a no-marriage culture among women?
BIG blow to Sundar Pichai as Google loses Rs 17501260000000 due to…
Caring for Ageing Parents? Essential tips to manage health, finances, and well-being
Meet Gautam Adani’s daughter-in-law Paridhi Adani: Know about her assets, career, family, and more
Jeet Adani-Diva Shah wedding: Inside pics from Gautam Adani's son's wedding festivity
Why has Premanand Maharaj stopped his morning yatras at 2 am?
Sonu Sood BREAKS SILENCE on arrest warrant against him in fraud case: 'It is sad that celebs...'
Akshata Murty once confronted her father and Infosys co-founder Narayana Murthy: 'My real dad is...'
Meet Alexis Wilkins, Trump's FBI chief pick Kash Patel's 'mystery girlfriend,' her profession is...
Fire breaks out at Mahakumbh Nagar camp, officials say no casualties reported so far
Who is Mohini Mohan Datta, mystery man set to get Rs 500 crore through Ratan Tata's will?
Cristiano Ronaldo makes shocking statement, breaks Portugal's hearts: 'I never thought about...'
Ludhiana court issues arrest warrant against Sonu Sood in fraud case
Happy Rose Day 2025: Significance of different coloured roses on Day 1 of Valentine's week
Salman Khan REVEALS why he avoids eating beef and pork: 'Main maanta hu meri maa...'
Shah Rukh Khan-Saif Ali Khan vs Aryan Khan-Ibrahim Khan: Who should be in KHNH2!
Why Israel's Benjamin Netanyahu gifted Donald Trump golden pager? It is a reference to...
Mob in Bangladesh destroys ousted PM Sheikh Hasina's family home
ISRO's EOS-06 satellite captures Phytoplankton concentration on global scale
IND vs ENG: Will Virat Kohli play in 2nd ODI vs England? Shubman Gill provides huge injury update
Who is Kiran Chaudhury? PCS officer caught in bribe case, just 4 years after posting
Jeet Adani-Diva Shah's wedding today: Know venue, gifts for guests and more
Meet woman, who works in Rs 163000 crore company, daughter of Hyderabad’s richest man
This is world's greenest railway station, 170 years old, home to over 7,000 plants, it's in....
As Sky Force nears Rs 150 crore, Nimrat Kaur treats househelp, her kids with movie screening
IND vs ENG: Shreyas Iyer creates history, becomes first player to achieve THIS massive milestone
Meet man, India's richest banker, who has bought Rs 202 crore property, his net worth is Rs...
'Heard there was....': Former India head coach provides major update on Virat Kohli's injury
A New Geopolitical Era: India and Israel's Role in the Evolving Middle East
David Warner’s touching moment with fans after Dubai Capitals reaches final of DP World ILT20
India’s Largest Book Stall Network: PrashantAdvait Foundation’s Mission to Revive Reading Culture
Mawra Hocane stuns in pastel mint green lehenga at her wedding to Ameer Gilani
Deepinder Goyal's Zomato changes its name, CEO shares journey of company, it is now called...
Rose Day 2025: Know the date, history, significance of each rose colour ahead of Valentine's day
'BJP-led NDA works for Santushtikaran, not Tushtikaran': PM Modi in Rajya Sabha
Who is Belle Gibson? Australian wellness guru created fake cancer story and later...
DP World ILT20 2025: Dubai Capitals clinch last ball thriller against Desert Vipers to reach final
Jeet Adani-Diva Shah wedding: First pic from Gautam Adani's mansion OUT as wedding festivities begin
Sunita Williams’ Spacewalk: A Record-Breaking Mission and a Stunning Selfie from Space
IND vs ENG: Ravindra Jadeja creates history in Nagpur, surpasses James Anderson to become....
Can IAS officers change cadres after marriage? Here's what rules say
Pavan Kumar Joshi innovates unemployment benefits payment security
Anil Ambani's company's share price surges over 6 per cent after it earns profit of Rs...
Why Dale Bhagwagar is Bollywood's only PR guru
Meet Anjum Khan, wife of cricket star Shivam Dube, her net worth is Rs...