Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you had tickets to an 8 o’clock concert, you’d be out of luck: 8 o’clock…
And because methane is invisible and odorless, it can be difficult and expensive to monitor it and prevent it from getting out. As a result, researchers and environmental activists say the industry is likely releasing far more than official government estimates show. Methane also seeps out from coal mines—more methane, actually, than is released during…
The US Food and Drug Administration has just approved lenacapavir, an injectable form of HIV prevention that is almost 100 percent effective and requires only two doses per year. Science magazine described the medicine the most important scientific advance of 2024. In clinical trials, lenacapavir proved to be 99.9 percent effective in preventing HIV infection…
“People are often curious about how much energy a ChatGPT query uses,” Sam Altman, the CEO of OpenAI, wrote in an aside in a long blog post last week. The average query, Altman wrote, uses 0.34 watt-hours of energy: “About what an oven would use in a little over one second, or a high-efficiency lightbulb…
In his current research, there are still gaps to be filled: how the CYP26B1 gradient is regulated, how retinoic acid connects to the Shox gene, and what downstream factors determine the formation of specific structures, such as the humerus or radius bones. From Healing to Regeneration Monaghan explains that axolotls do not possess a “magic…
While injected GLP-1 drugs are incredibly effective at spurring weight loss, they also come with some downsides. There can be gastrointestinal side effects and loss of muscle mass. The drugs are also expensive, at $1,000 a month or more in the US before insurance. Drug companies are interested in developing anti-obesity pills because of their…
Touch both objects. They’re the same temperature, but the wood feels warmer, right? Why is that? It’s not about temperature but thermal energy. When your hand touches an object, there is a heat conduction interaction. Energy is transferred from your warmer hand to the cooler object until the two are the same temperature. However, with…
The China National Space Administration has shared the first image from its Tianwen-2 probe, which is en route to Kamo’oalewa, a near-Earth asteroid. The image was captured by a camera onboard the probe, which is currently more than 3 million kilometers from Earth, and shows one of its wings with its solar panels deployed. It…
There may not yet be telescopes capable of unlocking all the secrets of supermassive black holes, but AI is now on the case. Recently, an international team of astronomers successfully trained a neural network with millions of black hole simulations to allow it to interpret fuzzy data captured from these enigmatic space objects in real…
A new Covid variant is being kept under surveillance by the World Health Organization (WHO) as its emergence has led to an increase in infections in several regions of the world. First identified at the end of January, the variant—called NB.1.8.1 but known informally as “Nimbus”—is a descendant of the Omicron family of Covid sublineages,…
