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Are aliens sending signals? Scientists look for radio waves not studied before

Are aliens sending signals? Scientists look for radio waves not studied before

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Are aliens sending signals? Scientists look for radio waves not studied before

For over half a century, astronomers have scoured the cosmos for signs of extraterrestrial life, focusing on the detection of technosignatures — distinct electromagnetic emissions that could indicate the presence of advanced alien technologies.

Despite decades of research and the growing belief that the ingredients for life are widespread throughout the universe, this high-stakes quest has yet to yield any evidence of intelligent beings beyond Earth.

The traditional approach to the Search for Extraterrestrial Intelligence (SETI) has involved scanning the skies with large single-dish telescopes at frequencies above 1 GHz.
However, a new frontier is emerging as scientists turn their attention to the relatively uncharted radio window below 1 GHz.

This shift in focus comes with the understanding that if an extraterrestrial civilisation were trying to make its presence known, it would likely transmit signals that stand out from natural background noise.

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Radio frequencies have long been considered a promising avenue for SETI because of their use in human telecommunications and radar.

The logic follows that alien civilisations might similarly employ radio waves to communicate or signal their existence.

Consequently, radio astronomy has been integral to SETI since the 1960s, with numerous surveys seeking narrowband radio emissions that could be either intentional transmissions or inadvertent leaks from extraterrestrial sources.

Now, astronomers are expanding the search to include low-frequency signals in the 110–190 MHz range—a spectrum that has seen limited exploration due to challenges such as ionospheric interference.

This initiative represents a significant departure from previous efforts, which have predominantly targeted higher frequencies.

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A recent study led by Professor Evan Keane from Trinity College Dublin, in collaboration with the Breakthrough Listen project and Onsala Space Observatory, has demonstrated the potential of multisite simultaneous observations to filter out human-made signals and hone in on possible technosignatures from afar.

Utilising the Irish and Swedish LOFAR stations, the team conducted a sweeping survey of 1.6 million star systems identified by the Gaia and TESS space missions.

While these searches have not yet detected a definitive signal from intelligent extraterrestrial life, the dedication to probing new segments of the radio spectrum and the upcoming enhancements to the LOFAR array signal a renewed vigor in the SETI community.

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Website creator Wix.com Q1 profit tops estimates, raises 2024 outlook

Website creator Wix.com Q1 profit tops estimates, raises 2024 outlook

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Website creator Wix.com Q1 profit tops estimates, raises 2024 outlook

Wix.com which helps small businesses build and operate websites, reported on Monday a higher-than-expected rise in quarterly net profit, boosted by its new artificial intelligence (AI) and Studio products for designing advanced websites.

The Israeli company posted earnings of $1.29 per diluted share, excluding one-time items, compared with 91 cents per share a year earlier. Revenue for the January-March quarter grew 12% to $420 million.

Analysts expected Wix to earn $1.05 per share excluding one-time items on revenue of $418 million, LSEG data showed.

Wix raised its full-year revenue outlook to $1.738-$1.761 billion, for annual growth of up to 13%. It expects second-quarter revenue of $431-$435 million, up 11-12%. 

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A former OpenAI leader says safety has ‘taken a backseat to shiny products’ at the AI company

A former OpenAI leader says safety has ‘taken a backseat to shiny products’ at the AI company

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A former OpenAI leader says safety has 'taken a backseat to shiny products' at the AI company

A former OpenAI leader who resigned from the company earlier this week said Friday that safety has “taken a backseat to shiny products” at the influential artificial intelligence company.

Jan Leike, who ran OpenAI’s “Superalignment” team alongside a company co-founder who also resigned this week, wrote in a series of posts on the social media platform X that he joined the San Francisco-based company because he thought it would be the best place to do AI research.

“However, I have been disagreeing with OpenAI leadership about the company’s core priorities for quite some time, until we finally reached a breaking point,” wrote Leike, whose last day was Thursday.

An AI researcher by training, Leike said he believes there should be more focus on preparing for the next generation of AI models, including on things like safety and analyzing the societal impacts of such technologies.

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He said building “smarter-than-human machines is an inherently dangerous endeavor” and that the company “is shouldering an enormous responsibility on behalf of all of humanity.”

“OpenAI must become a safety-first AGI company,” wrote Leike, using the abbreviated version of artificial general intelligence, a futuristic vision of machines that are as broadly smart as humans or at least can do many things as well as people can.

Open AI CEO Sam Altman wrote in a reply to Leike’s posts that he was “super appreciative” of Leike’s contributions to the company was “very sad to see him leave.”

Leike is “right we have a lot more to do; we are committed to doing it,” Altman said, pledging to write a longer post on the subject in the coming days.

The company also confirmed Friday that it had disbanded Leike’s Superalignment team, which was launched last year to focus on AI risks, and is integrating the team’s members across its research efforts.

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Leike’s resignation came after OpenAI co-founder and chief scientist Ilya Sutskever said Tuesday that he was leaving the company after nearly a decade.

Sutskever was one of four board members last fall who voted to push out Altman — only to quickly reinstate him. It was Sutskever who told Altman last November that he was being fired, but he later said he regretted doing so.

Sutskever said he is working on a new project that’s meaningful to him without offering additional details.

He will be replaced by Jakub Pachocki as chief scientist. Altman called Pachocki “also easily one of the greatest minds of our generation” and said he is “very confident he will lead us to make rapid and safe progress towards our mission of ensuring that AGI benefits everyone.”

On Monday, OpenAI showed off the latest update to its artificial intelligence m

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US, TikTok seek fast-track schedule, ruling by Dec. 6 on potential ban

US, TikTok seek fast-track schedule, ruling by Dec. 6 on potential ban

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US, TikTok seek fast-track schedule, ruling by Dec. 6 on potential ban

The U.S. Justice Department and TikTok on Friday asked a U.S. appeals court to set a fast-track schedule to consider the legal challenges to a new law requiring China-based ByteDance to divest TikTok’s U.S. assets by Jan. 19 or face a ban.

TikTok, ByteDance and a group of TikTok content creators joined with the Justice Department in asking the U.S. Court of Appeals for the District of Columbia to rule by Dec. 6 to be able to seek review from the Supreme Court if needed before the U.S. deadline. 

On Tuesday, a group of TikTok creators filed suit to block the law that could ban the app used by 170 million Americans, saying it has had “a profound effect on American life.”

Last week, TikTok and parent company ByteDance filed a similar lawsuit, arguing that the law violates the U.S. Constitution on a number of grounds including running afoul of First Amendment free speech protections.

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“In light of the large number of users of the TikTok platform, the public at large has a significant interest in the prompt disposition of this matter,” the U.S. Justice Department and TikTok petitioners said.

TikTok said with a fast-track schedule it believes the legal challenge can be resolved without it needing to request
emergency preliminary injunctive relief.

The law, signed by President Joe Biden on April 24, gives ByteDance until Jan. 19 to sell TikTok or face a ban. The White House says it wants to see Chinese-based ownership ended on national security grounds, but not a ban on TikTok.

The parties asked the court to set the case for oral arguments as soon as practical during the September case calendar. The Justice Department said it may file classified material to support the national security justifications in secret with the court.

Earlier this week the Justice Department said the TikTok law “addresses critical national security concerns in a manner that is consistent with the First Amendment and other constitutional limitations.”

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The law prohibits app stores like Apple and Alphabet’s Google from offering TikTok and bars internet hosting services from supporting TikTok unless ByteDance divests TikTok.

Driven by worries among U.S. lawmakers that China could access data on Americans or spy on them with the app, the measure was passed overwhelmingly in Congress just weeks after being introduced.

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