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Astronomers Finally Crack the Mystery of Cosmic X-Ray Blasts

The mysterious cosmic explosion has been traced to a massive stellar explosion. A global team of astrophysicists, led by researchers from Northwestern University and the University of Leicester (England), may have identified the origin of fast X-ray transients (FXTs), mysterious, fleeting bursts of

Antagonism as a foraging strategy in microbial communities

Fascinating paper where the authors show that many bacteria can attack other ‘prey’ bacteria (using T6SS as a weapon) and feed on the nutrients released by the destroyed prey. This behavior appears widespread across environments such as soil, ocean, etc.


In natural habitats, nutrient availability limits bacterial growth. We discovered that bacteria can overcome this limitation by acquiring nutrients by lysing neighboring cells through contact-dependent antagonism. Using single-cell live imaging and isotopic markers, we found that during starvation, the type VI secretion system (T6SS) lysed neighboring cells and thus provided nutrients from lysing cells for growth. Genomic adaptations in antagonists, characterized by a reduced metabolic gene repertoire, and the previously unexplored distribution of the T6SS across bacterial taxa in natural environments suggest that bacterial antagonism may contribute to nutrient transfer within microbial communities in many ecosystems.

Microsoft in talks to maintain access to OpenAI’s tech beyond AGI milestone

Microsoft is reportedly in advanced talks with OpenAI for a new agreement that would give it ongoing access to the startup’s technology even if OpenAI achieves what it defines as AGI, or advanced general intelligence. If the deal goes through, it would clear a key hurdle in OpenAI’s transition toward becoming a fully commercial enterprise.

The companies have been negotiating regularly, and they could come to an agreement in a few weeks, Bloomberg reports, citing three anonymous sources. The report cited some of the sources as saying that while the talks have been positive, other roadblocks could emerge in the form of regulatory scrutiny and Elon Musk’s lawsuit to block OpenAI’s for-profit transition.

OpenAI is currently structured as a mission-driven nonprofit that oversees a capped for-profit company — a setup that’s meant to limit how fully it can commercialize or raise money. That structure hasn’t stopped it from raising billions and operating like a traditional tech company, but OpenAI still wants to shake off its constraints.