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Astronomers using the James Webb Space Telescope (JWST) have just discovered the four most distant galaxies ever seen, located a little over 13 billion light-years from Earth. This means astronomers are seeing what galaxies looked like only 300 to 500 million years after the Big Bang, in the infancy of our now almost 14 billion-year-old universe, according to two new (opens in new tab) studies (opens in new tab) published April 4 in the journal Nature Astronomy.

“The frontier is moving almost every month,” Pieter van Dokkum (opens in new tab) , a professor of astronomy at Yale University who was not involved in the studies, said in a commentary (opens in new tab) published in Nature Astronomy. There are now “only 300 million years of unexplored history of the universe between these galaxies and the Big Bang,” van Dokkum added.

This may sound like familiar news, as several studies have recently claimed possible detections of even older galaxies using JWST in the past few months. The four newly discovered galaxies are different, though — astronomers have actually confirmed these are ancient galaxies and not some other celestial body, or a closer-by galaxy masquerading as a more distant one.

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Observations of the four oldest known galaxies in the universe, taken with the James Webb Space Telescope (Image credit: Nature Astronomy/ JWST)

For nearby galaxies, astronomers usually use color to estimate redshift, a parameter that describes distance as light waves stretch and turn redder while zooming across the expanding universe. However, this technique is a dicier choice when exploring wholly new frontiers like those being studied with JWST. In what van Dokkum describes as a “technical tour de force,” the authors of the new research used detailed measurements of the galaxies’ spectra, or the range of light they emit over different frequencies, to double-check the accuracy of the redshifts. 

These four galaxies exist in the epoch of reionization, a time when astronomers think the first stars were being created. Once they confirmed the galaxies’ ages, the researchers sized up the galaxies’ stars, finding that they were quite small, at least compared with our Milky Way. But the galaxies were also creating stars at a fast pace — something that was “surprising so early in the universe,” study co-author  Stéphane Charlot (opens in new tab) , a researcher at the Astrophysics Institute of Paris, told the French news agency AFP (opens in new tab) .related stories—The James Webb Telescope detected the coldest ice in the known universe — and it contains the building blocks of life

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The galaxies also don’t appear to contain any particularly complex elements, suggesting that their stars haven’t yet had time to create heavier elements and are instead made of the original hydrogen and helium atoms from the early universe, according to the researchers.

“Galaxies had to grow up fast indeed,” van Dokkum wrote, referring to the 300 million years in which these ancient galaxies formed. “To put this length of time in perspective, sharks have been around for longer!” 

When JWST launched in December 2021, astronomers hoped it would find the first galaxies — but results like these are showing that galaxies may have started earlier than anyone had previously thought. 

“The birth of the first galaxies may have been so early that it lies beyond even JWST’s powers,” van Dokkum wrote.

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Amazon venture fund backs startup developing fix for return fraud

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Amazon venture fund backs startup developing fix for return fraud

Packages ride on a conveyor belt during Cyber Monday at an Amazon fulfillment center on December 2, 2024 in Orlando, Florida.

Miguel J. Rodriguez Carrillo | Getty Images

Amazon is turning to the startup world to find a potential fix for one of its thorniest logistics problems.

Retailers of all sizes have in recent years struggled with an uptick in fraudulent returns. The scam involves shoppers requesting a refund, but instead of returning the merchandise, they keep the item and send back an empty package or a box of unrelated junk.

It’s become a costly nuisance for retailers, accounting for $103 billion in losses last year, according to Appriss Retail.

Cambridge Terahertz, a Sunnyvale, California-based startup, has developed a 3D imaging system that can see inside unopened packages, enabling retailers to more easily and quickly spot cases of return fraud.

The company has just closed a $12 million seed financing, led by venture firm Felicis, with participation from Amazon’s $1 billion Industrial Innovation Fund and other investors.

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“Amazon handles a lot of boxes, as you can imagine,” Nathan Monroe, CEO of Cambridge Terahertz, said in an interview. “It’s a big problem just knowing what’s inside boxes, knowing how efficiently they’re packed, knowing if what you’ve returned to them is what you said it is.”

Amazon launched the Industrial Innovation Fund in 2022 with a goal of investing in businesses working on technology solutions that could apply to the company’s massive and complex operations network, from the middle mile to the last-mile portion of the delivery process.

Franziska Bossart, head of the fund, said in an interview that Amazon will typically plan to pursue a deeper “commercial relationship” with portfolio companies over time, ranging from piloting the technology to a potential acquisition.

Cambridge’s technology “aligns well with Amazon’s needs” and can have a real impact on its ability to screen inventory for damages and defects once it’s returned or before a package leaves the warehouse.

“The ability to see into boxes, identify contents, along with the compact nature of the system could allow for integration at various points in our operations,” Bossart said.

The fund has backed 20 companies so far. It also sourced Amazon’s acquihire and licensing deal with artificial intelligence robotics startup Covariant last August, Bossart added.

Amazon’s investment track record has come under scrutiny in the past. A 2020 investigation from The Wall Street Journal found the company’s Alexa Fund, which primarily invests in voice and AI technologies, used privileged information gained during meetings to launch its own competing products, citing people and startups familiar with the situation. Amazon previously denied any wrongdoing.

One of the Alexa Fund’s most notable investments was in video doorbell maker Ring, which Amazon later acquired in 2018 for $1 billion.

Cambridge connected with Amazon last year through a pitch competition focused on packaging visibility. Monroe co-founded the company in 2023 after researching terahertz imaging at the Massachusetts Institute of Technology.

The company, which has 10 employees, says it shrunk airport-scale security scanners down to a chip-based system inside a pyramid-shaped device that can fit in your hand. The device was originally conceived as a way to detect concealed weapons by seeing through nonconducive materials, like clothing or packages, in an unobtrusive way.

Cambridge cofounders Nathan Monroe and Anand Dixit hold a custom chip and pyramid-shaped device that make up its 3D imaging system.

Cambridge Terahertz

Cambridge said it has since been approached by companies interested in how the technology can be used in supply chains, manufacturing, aerospace and medical applications.

The startup said it has secured four government contracts, and has had discussions with U.S. Customs and Border Protection around how the technology can be used to detect shipments of fentanyl at the border, a problem the Trump administration has zeroed in on through its crackdown on a near century-old trade loophole known as de minimis.

The capital from Amazon and others will enable Cambridge to ramp up hiring and “fully productize” its 3D imaging technology, Monroe said.

WATCH: Amazon weighs another multi-billion dollar investment in Anthropic

Amazon weighs another multi-billion dollar investment in Anthropic

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AO chair Cooper interviewed for Channel 4 chair job

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AO chair Cooper interviewed for Channel 4 chair job

The chairman of AO, the online electrical goods retailer, has been interviewed to become the next chair of state-owned broadcaster Channel 4.

Sky News has learnt that Geoff Cooper, a former boss of the builders’ merchant Travis Perkins, is among the candidates in the running to take on the post in the coming months.

Whitehall insiders said that Mr Cooper was now one of the shortlisted contenders awaiting news of whether they would get the nod from Ofcom, the media regulator and culture secretary Lisa Nandy.

In recent weeks, Sky News has revealed that those vying to replace Sir Ian Cheshire include Justin King, the former J Sainsbury boss; Wol Kolade, a private equity executive who has donated substantial sums of money to the Conservative Party; Debbie Wosskow, a start-up founder who already sits on the Channel 4 board.

Simon Dingemans, a former Goldman Sachs banker who sits on the board of WPP, the marketing services group, has also been shortlisted, according to the Financial Times.

Sir Ian stepped down earlier this year after just one term, having presided over a successful attempt to thwart privatisation by the last Tory government.

He was replaced on an interim basis by Dawn Airey, the media industry executive who has occupied top jobs at companies including ITV, Channel 5 and Yahoo!.

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The race to lead the state-owned broadcaster’s board has acquired additional importance since the resignation of Alex Mahon, its long-serving chief executive.

It has since been reported that Alex Burford, another Channel 4 non-executive director and the boss of Warner Records UK, is a possible contender to replace Ms Mahon.

A vocal opponent of Channel 4’s privatisation, which was abandoned by the last Conservative government, Ms Mahon is leaving to join Superstruct, a private equity-owned live entertainment company.

The appointment of a new chair is expected to take place by the autumn, with the chosen candidate expected to lead the recruitment of Ms Mahon’s successor.

The Department for Culture, Media and Sport has declined to comment on the recruitment process, while Mr Cooper could not be reached for comment.

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Satellite tracker Spaceflux reaches lift-off with £5m funding boost

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Satellite tracker Spaceflux reaches lift-off with £5m funding boost

A British space surveillance company which has won a string of government contracts will this week announce a £5.4m fundraising to expand its global network of advanced telescopes.

Sky News understands that Spaceflux, which was founded three years ago, has secured the injection of capital in a round led by the UK Innovation & Science Seed Fund (UKI2S), which is managed by Future Planet Capital, as well as Foresight Group and Blackfinch Ventures.

Seraphim Space, the listed specialist investor in space-related companies, is also contributing funding.

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Spaceflux uses artificial intelligence and optical sensors to track satellites and debris across all orbits, with its daylight tracking capability meaning it can expand the observation window beyond night-time operations.

Its provision of space situational awareness technologies is in growing demand amid warnings that a week-long disruption to satellite navigation could incur a £7.6bn hit to the UK economy.

In a statement to Sky News, Marco Rocchetto, CEO and co-founder of Spaceflux, said: “As space becomes increasingly essential to our economy, environment and daily lives, it is also becoming more congested and contested.

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“This investment strengthens our ability to protect satellite technology that delivers crucial insights to Earth around the clock, reducing collision risks, and supporting a safer, more sustainable space environment for future generations”.

The valuation at which the funding was being committed was unclear on Thursday.

Spaceflux, which serves government and commercial customers, has been the exclusive provider of geostationary satellite tracking for the Ministry of Defence and UK Space Agency since 2023.

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Alex Leigh, an investment director at UKI2S, said: “This investment marks a significant step in the convergence of defence and space, where dual-use technologies are becoming increasingly important to UK capability.

“Spaceflux’s technology offers critical insights to help monitor and safeguard orbital assets – supporting both national security and the wider commercial ecosystem.

“The company is well-positioned to scale its impact and meet the needs of customers navigating an increasingly complex space environment.”

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