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Astronomers spot a new dwarf planet candidate beyond Pluto

(CNN) — Astronomers have spotted a new dwarf planet candidate in the solar system, beyond the orbit of Pluto, which they provisionally named ED138. If future observations confirm the discovery, ED138 will join a group currently made up of five dwarf planets that have been recognized by the International Astronomical Union, or IAU: Ceres, Pluto, Haumea, Makemake and Eris. The finding is the result of detections made by the Vera C. Rubin Observatory, a new telescope that sits atop a 2,682-meter-tall (8,800-foot-tall) mountain in Chile and houses the world’s largest digital camera. The telescope started operating in 2025 and is capable of imaging the entire sky every three days. However, Holman warns, ED138 isn’t officially a dwarf planet yet: “At this point, it’s still a candidate. We really need to know how physically big it is, and that will take a few months, probably.” In the night…

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Abnormal Neurons Are Common in the Developing Brain. The Body Has a Mechanism to Eliminate Them

Newswise — During fetal development, the human brain generates an excess of neurons, most of which are eliminated shortly before and after birth. New research from Harvard Medical School and Boston Children’s Hospital suggests that this is a critical quality-control mechanism. A study published Oct 28 in Nature shows that neurons with multiple copy number variants — abnormal duplications or deletions of segments of DNA — are surprisingly widespread in the developing brain. Copy number variants can impact brain function and may contribute to neuropsychiatric conditions, including autism, schizophrenia, epilepsy, and intellectual disability. But the research also shows that the vast majority of these flawed neurons are selectively eliminated, likely because the genomic alterations disrupt their ability to form synapses. “Between 13 and 46 percent of neurons in the developing brain are…

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Nearly 60% of nurses say they aren’t fully prepared for the technology they use at work

By Ryan Smith for Carrington College Technology has become a central part of modern nursing, from electronic charting systems to AI-powered tools designed to streamline clinical workflows. But as new platforms become more common in healthcare settings, many nurses say they have not received the training needed to feel fully confident using them. A June 2026 survey of 465 registered nurses, commissioned by Carrington College, found that nearly 60% of respondents do not feel fully trained on the technology required for their jobs. While most nurses see the benefits of digital tools, the findings point to a growing gap between the pace of technology adoption and the support healthcare workers receive to use it effectively. Nearly 60% of nurses in the survey reported some level of gap in their preparation: That means a majority of nurses are working with technology they do not feel…

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