NASA pushed its Deep Space Network beyond its limits during the Artemis I mission nearly four years ago. The global array of deep space communications antennas couldn't keep up with the routine demands of 40 robotic science missions and the extraordinary surge required by NASA's Orion space capsule as it flew around the Moon.

The experience in late 2022 reduced or delayed downlinks from several high-profile science missions, including the James Webb Space Telescope and Mars rovers, as the data-hungry Artemis I mission took priority on NASA's communications network. And that was before the first Artemis mission with astronauts onboard. When Artemis II launched April 1, NASA called upon the Deep Space Network (DSN) again to connect Mission Control to the Orion capsule as it soared more than a quarter of a million miles from Earth.

With a crew of four flying inside the spacecraft, the agency's appetite for data from Orion on Artemis II was even higher than it was on Artemis I. But at a little more than nine days, the Artemis II mission was shorter than the 25 days Artemis I spent in space, helping alleviate the communications overload. Artemis I also launched 10 small CubeSats into deep space, many of which required tracking and telecom services from the DSN. Artemis II carried fewer CubeSats.

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Very little is known about funerary practices in Iron Age Britain, since few human remains have survived. However, the environment in northwest Scotland is more conducive to preserving bone from that period. Archaeologists have previously noted evidence of postmortem manipulation of human remains, such as mummification, and of modifying human bones into tools or decorative artifacts. Now a new paper published in the journal Antiquity describes evidence of postmortem brain removal in remains from that region, as well as sharpened limb bones, possibly for use as tools.

The remains in question were found in 2000 at a burial cairn in Loch Borralie, near the most northwest tip of the Scottish mainland, after erosion revealed a human cranium. The excavated remains belonged to two individuals: one an adult female and the other a juvenile of (at the time) indeterminate sex; the cranium belonged to the latter. The authors of the new paper conducted a fresh osteoarchaeological analysis as well as multi-isotope and ancient DNA analysis. Radiocarbon dating of molar teeth from both sets of remains placed their deaths as occurring between 50 BCE and 70 CE.

In the case of the female individual, the authors noted an unusual break at the base of the cranium that likely occurred near the time of death. It's the kind of fracture that one gets from high-velocity impacts, including vehicular collisions, sporting accidents, falls, assaults, or even long-drop hanging. But the known forensic patterns observed in the aforementioned scenarios don't exactly match the pattern of the Iron Age cranium, leading the authors to conclude that it likely resulted from a targeted impact. They also noted perimortem fractures on both scapulae.

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The upcoming loss of a deep-ocean monitoring system is triggering deep anxiety in Alaska, the nation’s top fish-producing state, where temperatures are warming twice as quickly as the global average.

The National Science Foundation announced plans in May to decommission the Ocean Observatories Initiative, a nearly $368 million network of scientific instruments that tracks ocean chemistry, wave action, water temperature, salinity, and a host of other metrics.

The real-time information from these ocean observatories helps scientists, fishery managers, coastal hazard planners, and even the military plan and prepare for the future. Whether that’s calculating how much fish can be harvested or when a marine heatwave or giant wave action may be occurring, the data is used by a plethora of sources.

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We tend to view ourselves and the complex cells that build us as a distinct branch of the tree of life from the compact, seemingly featureless cells of bacteria and archaea. But we've found that our genome is actually a hybrid, a mish-mash of genes from bacteria and archaea, along with some that have evolved in our own lineage.

Scientists gradually settled on a simple explanation for this: the first complex cells were the product of a fusion between archaeal cells and bacteria, with the bacteria ultimately evolving into the mitochondria, a chemical-power-generating structure that still retains a bit of its own genome. Over time, many of the other bacterial genes were transferred to the nucleus of what was becoming what we now call a eukaryote, intermingling with the archaeal genes there.

But a new study has taken a careful look at some of the genes shared by all eukaryotes and comes to the conclusion that the reality is a little more complicated and that there were several waves of gene transfers from bacteria. The big picture of a merger between bacteria and archaea is still right, but it was only part of a picture where gene transfers among species were commonplace.

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Amid intense backlash, the head of the American Diabetes Association posted a video Wednesday apologizing for the organization's decision on Friday to forcefully remove five leading diabetes scientists from the association's annual meeting.

The scientists were ejected for handing out copies of an April editorial—published in the ADA's own journal Diabetes Care—that sharply criticizes the Trump administration for the damage and destruction it's wreaking on biomedical research. The five scientists included Steven Kahn, professor of medicine at the University of Washington, who is the editor-in-chief of Diabetes Care and a co-author of the editorial. It also included former ADA President Desmond Schatz of the University of Florida.

The scientists were distributing the editorial outside the conference's opening speech, which was originally scheduled to be given by Jay Bhattacharya, head of the National Institutes of Health under Trump. Bhattacharya canceled at the last minute, and senior NIH official Rick Woychik took his place.

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