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Grok Imagine, xAI’s new AI image and video generator, lets you make NSFW content

Elon Musk’s AI company has officially rolled out Grok Imagine, xAI’s image and video generator, to all SuperGrok and Premium+ X subscribers on its iOS app. And true to form for Musk, who positions Grok as an unfiltered, boundary-pushing AI, the generator allows users to make NSFW content.

Grok Imagine, which promises to turn text or image prompts into a 15-second video featuring native audio, has a “spicy mode” that allows users to generate sexually explicit content, including partial female nudity. There are limits to how explicit one can get. Many of our spicier prompts — made in the name of Journalism! — generate blurred-out images that are “moderated” and therefore inaccessible. We were, however, able to generate semi-nude imagery.

The NSFW content is unsurprising for xAI, given the release last month of a raunchy, hyper-sexualized anime AI companion. But just as Grok’s unrestrained nature was entertaining until it started spewing hateful, antisemitic, misogynistic content, Grok Imagine could be poised to bring its own set of unintended consequences.

Brain cells controlling stress switch on and off in hourly cycles

University of Otago Ōtākou Whakaihu Waka-led research has found stress-controlling brain cells switch on and off in a steady rhythm about once every hour—even when nothing stressful is happening.

Senior author Associate Professor Karl Iremonger, of Otago’s Department of Physiology and Center for Neuroendocrinology, says these rhythms shape and alertness.

These bursts of brain cell activity seem to act like a natural ‘wake-up’ signal, and often lead to a rise in , or cortisol.

Vagus nerve stimulation paired with meditation increases self-compassion and mindfulness benefits

Stimulating the vagus nerve with a device attached to the outer ear can help make compassion meditation training more effective at boosting people’s capacity for self-kindness and mindfulness, finds a new study led by University College London (UCL) researchers.

The study, published in Psychological Medicine, adds to evidence of the potential benefits of stimulating this key nerve that connects the brain with major organs in the chest and abdomen.

The plays a crucial role in the “rest-and-digest” (parasympathetic) system, counteracting the “fight-or-flight” (sympathetic) , and allows the brain to communicate with all major organs in the body. By transmitting signals from the body up to the brain, the vagus nerve can also regulate a range of psychological processes, including some involved in social interactions and emotional control.

Autologous Hematopoietic Stem Cell Transplantation for Paraneoplastic Cerebellar Degeneration

Background and ObjectivesThe aim of this study was to describe 2 patients with paraneoplastic cerebellar degeneration (PCD) treated with autologous hematopoietic stem cell transplantation (AHSCT).MethodsOff-label AHSCT was performed at Hospital Clinic…

AMD is selling record numbers of CPUs at Intel’s expense

AMD just reported its Q2 2025 earnings, and it’s attributing a new quarterly revenue record of $7.7 billion to one particular thing: “record server and PC processor sales.” And while AMD doesn’t mention its flagging competitor Intel, it seems many are turning to Team Red: AMD just crossed 40 percent market share for the first time on the Steam Hardware Survey of PC gamers, and it may have 40 percent server market share soon too.

New Technique Sheds Light on Chemistry at the Bottom of the Periodic Table

The periodic table is one of the triumphs of science. Even before certain elements had been discovered, this chart could successfully predict their masses, densities, how they would link up with other elements, and a host of other properties.

But at the bottom of the periodic table, where massive atoms are practically bursting at the seams with protons, its predictive power might start to break down. Experiments to study the chemistry of the heaviest elements — especially the superheavy elements, which have more than 103 protons — have long been a challenge. Despite using specialized facilities, researchers have been unable to definitively identify the molecular species they produce in experiments. This uncertainty has hindered progress in the field, since scientists have had to rely on educated guesses rather than precise knowledge of the chemistry being observed.

Now, researchers have used the 88-Inch Cyclotron at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) to develop a new technique to make and directly detect molecules containing heavy and superheavy elements. In a study published today in the journal Nature, a team of researchers from Berkeley Lab, UC Berkeley, and The University of Alabama used the method to create molecules containing nobelium, element 102. It is the first time scientists have directly measured a molecule containing an element greater than 99.

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