The arrival of four new astronauts as part of the Crew 12 mission—Jessica Meir and Jack Hathaway of NASA, Sophie Adenot of the European Space Agency, and Andrey Fedyaev of Roscosmos—brought the total ...

But thanks in part to trees planted in areas where the two fungi don’t grow well, the American chestnut isn’t extinct. And efforts to revive it in its native range have continued, despite the long ...

The founder of Amazon, Jeff Bezos, does not often post on the social media site owned by his rival Elon Musk. But on Monday, ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...

The next series of launch opportunities for the Artemis II mission begin March 3. If the mission doesn’t lift off in March, NASA will need to roll the rocket back to the Vehicle Assembly Building to ...

Since the 1990s, astronomers have found a handful of other dwarf planets in the belt, such as Eris and Sedna, along with ...

The World Health Organization on Friday released a formal statement blasting a US-funded vaccine trial as “unethical,” ...

On Thursday, OpenAI released its first production AI model to run on non-Nvidia hardware, deploying the new GPT-5.3-Codex-Spark coding model on chips from Cerebras. The model delivers code at more ...

Google also says Android 17 Beta 1 debuts new performance optimizations with better management of system resources. The OS ...

Overall, Grok concluded that “based on extensive fact-checks and expert consensus, RFK Jr. is not a reliable source on health ...

The Ariane 6 rocket lifted off from the Guiana Space Center on the northeastern coast of South America at 11:45 am EST (16:45 ...

Our first impression was positive enough to place the Leaf first among the cars we drove in 2025. Sure, if money were no ...