The mini rotorcraft, which hitched a ride to the Red Planet with the Perseverance rover in early 2021, has already survived well beyond its initial 30-day mission to prove the feasibility of its technology in five test flights.

Verified accounts were initially limited to reading 6,000 posts a day, Musk said, adding that unverified accounts will be limited to 600 posts a day with new unverified accounts limited to 300.

The launch is planned from Cape Canaveral in Florida at 11:12 am local time (1512 GMT) on a Falcon 9 rocket of the US company SpaceX.

The Online News Act became law last week, aiming to support a struggling Canadian news sector that has seen hundreds of publications close in the last decade.

The breakthrough -- made by hundreds of scientists using radio telescopes in North America, Europe, China, India and Australia after years of work -- was hailed as a major milestone that opens a new window into the universe.

But what are these disaster scenarios and how are machines supposed to wipe out humanity?

The remains of the Titanic rest on the seabed in the North Atlantic at a depth of some 3,800 meters.

The finding was based on a review of data collected by NASA's Cassini probe, and was published Wednesday in the prestigious journal Nature.

"It was a demo that John (Lennon) had, and that we worked on, and we just finished it up," said McCartney, who turns 81 next week.

The release was the most significant product launch by the iPhone maker since it unveiled the Apple Watch in 2015.

A one-line statement signed by dozens of specialists, including Sam Altman whose firm OpenAI created the ChatGPT bot, said tackling the risks from AI should be "a global priority alongside other societal-scale risks such as pandemics and nuclear war".

Neuralink said clearance from the US Food and Drug Administration (FDA) for its first in-human clinical study is "an important first step" for its technology, which is intended to let brains interface directly with computers.

The unprecedented ban, set to start in 2024, violates the constitutionally protected right to free speech, TikTok argued in the suit.

The new study, published this week in the magazine Science, found that it was probably widespread even in the ancient world.

It could be the ultimate blend of art and science -- a new seven-suite "space symphony" inspired and illustrated by NASA's latest mind-boggling images.

As people brace for the disruptive impact of artificial intelligence on jobs, those in the world of audio books say their field is already being transformed.

It was the first time Yaccarino has spoken publicly since the news broke Thursday that she was in talks to become the next CEO of Twitter. Musk, who has served as CEO since his $44 billion buyout of Twitter last October, announced her appointment on Friday.

Apple will launch its first online store in Vietnam next week, hoping to cash in on the country's young and tech-savvy population.

While the astronomers offered what they think is the most likely explanation for the explosion, they emphasised that more research was needed to understand the puzzling phenomenon.

A new genetics study published Tuesday in Cell Reports finds that some of the first arrivals came from China during two distinct migrations: the first during the last ice age, and the second shortly after. 

"Coming soon will be voice and video chat from your handle to anyone on this platform," Musk said in a tweet.

Last year, Musk flagged plans for "Twitter 2.0 The Everything App", which he said would have features such as encrypted direct messages (DMs), longform tweets and payments.

LinkedIn, which has 20,000 employees, has grown revenue each quarter during the last year, but it joins other major technology companies including its parent in laying off workers amid a weakening global economic outlook.

Apple said iPhone sales powered quarterly earnings that beat forecasts, despite inflation pressure and the slowing global economy.

With the closure of BuzzFeed News and bankruptcy looming at Vice, the once promising world of free digital media finds itself at a crossroads.

But when the Sun finally does engulf Earth, it will cause only a "tiny perturbation" compared to this cosmic explosion, the US astronomers said.

US conservation groups announced they are suing the Federal Aviation Administration (FAA) for not doing enough to protect the environment from SpaceX's Starship program.

Samsung Electronics is banning employees in its mobile and appliances division from using generative AI services such as ChatGPT.

In a sea of videos, many with millions of views, terrified women declared plans to lock themselves in their rooms all day and men vowed to protect them against imaginary assailants.

A Polish-US mission discovered the statue "dating back to the Roman era while digging at the ancient temple in Berenice", an antiquities ministry statement said on Wednesday.