12-2019 Science News

SANTA FE, N.M. — Maxar Technologies announced Dec. 30 it would sell its Canadian subsidiary to private equity firms, turning it into a standalone company while providing Maxar with much-needed debt relief. Maxar said that a consortium of firms led by Northern Private Capital, a Toronto-based private investment firm, agreed to purchase MDA, Maxar’s Canadian
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Iridium wrapped up de-orbiting 65 first-generation satellites, but questions remain over what to do — if anything —  about the 30 that remain space junk.  WASHINGTON — Iridium Communications completed disposal of the last of its 65 working legacy satellites Dec. 28, while leaving open the possibility of paying an active-debris-removal company to deorbit 30
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The Amazon warriors of ancient Greek lore were once considered mythical figures. But in recent years, archaeological work and genetic analysis have identified women buried with weapons, horseback riding equipment and other accoutrements traditionally associated with warriors. Earlier this month, a team led by archaeologist Valerii Guliaev announced the discovery of a 2,500-year-old tomb in
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Adult American coots are mostly black and gray, but their chicks sport bright orange and red coloring. Credit: Bruce Lyon The American coot is a somewhat drab water bird with gray and black feathers and a white beak, common in wetlands throughout North America. Coot chicks, however, sport outrageously bright orange and red feathers, skin,
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Credit: CC0 Public Domain Gadgets that resemble little black hats are showing up on the heads of alligators in South Carolina. They’re actually GPS trackers. The South Carolina Department of Natural Resources posted an alert about the devices on Dec. 27, and revealed they’re being attached as part of a joint study with Clemson University.
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Positions and Identifications of Stars in Melotte 105. Credit: Banks et al., 2019. A new study recently conducted by astronomers has investigated the Melotte 105 open cluster with the aim on uncovering its fundamental properties. The research, presented in a paper published December 18 on arXiv.org, provides more accurate measurements of the cluster’s distance, age
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Mathematical modeling of locally nonequilibrium transfer processes and methods Credit: @SamaraPolytech A team of scientists from the Research Center “Fundamental Problems of Thermophysics and Mechanics,” of Samara Polytech is engaged in the construction of new mathematical models and the search for methods for their study in relation to a wide range of local nonequilibrium transport
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The surface of a multicillated cell. Credit: Andrew Holland One of the wonders of cell biology is its symmetry. Mammalian cells have one nucleus and one cell membrane, and most humans have 23 pairs of chromosomes. Trillions of mammalian cells achieve this uniformity—but some consistently break this mold to fulfill unique functions. Now, a team
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Credit: National Research University Higher School of Economics Researchers from HSE University have shown that the 2010 happiness level of citizens from Tunisia, Libya, Egypt, and other Arab countries could provide a much more accurate forecast of the Arab Spring events than purely economic indices, such as GDP per capita and unemployment rate. Motifs for
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When a searing flash of lightning crackles through the sky, some spectators marvel at its brilliance, while others duck for cover. A select few, however, may interpret the event as an act of God—and, subsequently, feel inspired to construct an elaborate circle of thousand-pound stones. At least, that’s what a team of archaeologists now suspects
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