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Showing posts with the label in the news

Pluto's Unexpected Terrain; SETI, Radio, and Drums

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Pluto's still in the news, as New Horizons starts sending data from its July 14 flyby. That will take more than a year, but there have already been surprises: including "not easy to explain terrain" near Pluto's equator. Meanwhile, the DSCOVR Solar weather monitor sent back a snapshot of Earth; and Professor Stephen Hawking is supporting a new search for intelligent life in the universe. I think the Royal Society in London's Breakthrough Initiatives group will collect interesting facts while listening for extraterrestrial radio broadcasts. But I also think that our neighbors could easily have been using wireless telegraphy when Oldowan tools were our high tech. More at A Catholic Citizen in America .

New Horizons: Past Pluto, Outward Bound

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New Horizons has started sending back data from its Pluto flyby on July 14, 2015. Pluto and Charon don't have nearly as many craters as scientists expected. One patch, at least, seems to be very new, on the cosmic time scale. Something, maybe Pluto's equivalent of volcanic eruptions, resurfaced that terrain in the last 100,000,000 years. There's something odd about Charon's north polar region, too. Interesting, anyway. More at A Catholic Citizen in America .

Pluto’s ‘Whale,’ Comet 67P’s Sinkholes

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New Horizons is closer to Pluto than it was when I started writing this post, and should send back about 5,000 times as much data as Mariner did in its Mars flyby, 50 years ago. ( BBC News ) The ESA's Philae lander 'woke up' last month, but the big news from the Rosetta mission are Comet 67P/Churyumov–Gerasimenko's sinkholes: and the jets of gas and dust coming from at least some of them. More at A Catholic Citizen in America .

Beavers, Floods, and Yet Another Dire Prediction

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Beavers are back in England, which is good news or bad news: opinions differ on that point. Quite a few folks died when drains blocked up in Nigeria's capital. Then a gas station exploded. There's more rain in the forecast, so their troubles are far from over. Finally, there's a new doomsday prediction in a brand-new publication. Madagascan lemurs are imperiled: but not, I think, cockroaches, rats — or humans. More at A Catholic Citizen in America .

Tiny Microbes and the Tree of Life, Big Aliens

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Small critters: The University of California, Berkeley, press release calls them "bacteria," but scientists may decide that they should get another label. These tiny microorganisms aren't quite like anything else that's had its DNA analyzed before, so textbooks may need to be rewritten in a few years. Big aliens: Ever since reporters garbled a 1950s UFO sighting, " little green men " has meant "space alien." We still don't know whether there's life, intelligent or otherwise, elsewhere: but a scientist says that if we've got neighbors, they're probably bigger than we are. More at A Catholic Citizen in America .

Human Nature, Change, and Dinosaur Names

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Human remains in Sima de los Huesos/Pit of Bones show evidence of a lethal attack — 430,000 years ago. On the 'up' side, evidence of human compassion goes back 1,800,000 years. The sauropod we've called "Brontosaurus" has that name again, probably, which gave me an excuse to mention Gertie the Dinosaur and Anne Elk's Theory on Brontosauruses.... More at A Catholic Citizen in America .

Dogs, Stone Tools, and Newly-Discovered Ancestors

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Australopithecus deyiremeda, a newly-discovered member of humanity's family, was in this week's news. We're also learning more about when some wolves started becoming dogs, and have discovered really old stone tools.... ...Humanity's family history is nowhere near as simple as folks figured when Carl Linnaeus published " Systema Naturae " in 1735.... More at A Catholic Citizen in America .

A Robotic Tentacle, and Disney’s Baymax

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Disney Studio's film version of Baymax is fiction. Robots designed to work with people are real: although they're nowhere near as smart as their fictional counterparts. More at A Catholic Citizen in America .

Fire Ant Engineering and Bungee Nerves

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The last I heard, Rubenstein's robot swarm was pretty good at forming different shapes: but not much else. ( August 22, 2014 ) What we're learning about how fire ants build their nests may change that. Scientists discovered that the pests use different excavating techniques, depending on what sort of soil they're in. Other scientists found stretchy nerves in rorqual whales. The nerves are made from the same stuff found in other animals — what makes them stretchy is how the nerve fibers fold up.... ...Looking up rorqual whales and baleen encouraged a (very brief) tangent on evolution. I figure I'd better review why I don't argue with the Almighty about this world's development: and don't fear a robot revolution.... More at A Catholic Citizen in America .

Climate Change, Deccan Traps: Still Learning

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Scientists found a two-century lag between temperature changes near Earth's poles — and maybe a "bipolar seesaw" temperature cycle. Other scientists say that shock waves from the Chicxulub impact may have triggered volcanic eruptions in the Deccan Traps and elsewhere.... ...We don't, I think, have all the answers about how Earth's climate changes and what we should do about it: but we're discovering what some of the questions are. That's a good start. More at A Catholic Citizen in America .

Climate Change, Science, and the Vatican

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The 'Vatican science academy' is in the news again: this time because they've said we should use our brains. The topic was climate change, which tends to stir up sound and fury more than rational discourse. Meanwhile, one scientist implied a link between our "carbon dioxide crisis" and a lot of dead critters, some 201,000,000 years back. More to the point, I think, the team he was on has added a few more pieces to the puzzle of what caused the Triassic-Jurassic extinction event. More at A Catholic Citizen in America .

Mass Extinctions Revisited, Moving Octopuses

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We've known about the Capitanian crisis for some time: some scientists have, anyway. What's new is the idea that it may have been a major mass extinction in its own right: a sort of prequel to the Great Dying. Other scientists solved part of the puzzle of how octopuses coordinate their arms when moving. Their research may help folks design soft robots: useful in medicine and rescue work.... More at A Catholic Citizen in America .

Large Hadron Collider: There’s More to Learn

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The world's largest and most powerful particle collider , CERN's Large Hadron Collider (LHC), is back in operation. Scientists will be studying conditions like those just after this universe began: at about twice the energies they used back in 2013. I'm excited at the prospect of learning more about the workings of matter and energy: and news about the LHC is already starting to get goofy. More at A Catholic Citizen in America .

Early Brood Care, Four-Eyed Cambrian Predator

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Yawunik kootenayi, that four-eyed critter in the video, was a big predator: during the Cambrian. A half-billion years later, a two-inch animal isn't all that large. More recently, a tiny insect and her brood became fossils: giving scientists a rare glimpse of parental care during the Cretaceous.... Like I've said before, humans are animals: but we're not just animals. We have "dominion" over this world: but we don't own it. Our position is more like shop foreman or steward. One of our jobs is taking care of this world's resources: for our reasoned use, and for all future generations.... More at A Catholic Citizen in America .

The Thumb-Brain Connection, and DIY Robots

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Scientists learned how using our thumbs changes our brains by collecting data from 26 smartphone users, 11 users of "old-fashioned cellphones," and electroencephalography. Building your own robot is getting a whole lot easier, now that RoboCORE is around. It's a robotic central nervous system you can program with C++ or Python.... When I was in high school, I learned that adult brains were static, unchanging. Neuroscientists thought, or assumed, that once we get past youth — that our brains don't change: no new neurons, no new connections between neurons. They were wrong.... More at A Catholic Citizen in America .

A Hidden Crater, Lava Tubes, and Mercurian Ice

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A bit shy of eight decades ago, a pilot and navigator set off on a round-the-world flight that should have provided ample material for her next book . Instead, shortly after midnight, July 2, 1937 GMT , the modified Lockheed Model 10 Electra disappeared. She's still famous — and now has an invisible Lunar crater named after her. Eventually, Fred Noonan may have some rock named after him, or maybe not. In a perfect world, folks in the support crew would get a tad more recognition — my opinion — but this isn't a perfect world. What's remarkable about Earhart Crater is that it's big , on the side of Earth's moon facing our planet — and buried under billions of years' of accumulated debris. Scientists found it while sifting through gravitational data. Other scientists found that lava tubes would be strong and safe enough to house a Lunar base, and Messenger took pictures of ice on Mercury. More at A Catholic Citizen in America .

Dawn's Arrival at Ceres; Sims and "Chaos"

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Dawn became the first spacecraft to orbit two asteroids or planets other than Earth last week. More to the point, we're learning more about these survivors from the early Solar System. Meanwhile, from the world of infotainment , "chaos" and the early Solar System.... ...Either way, Vesta and Ceres are — most likely — the last remaining large protoplanets : which makes them valuable samples of the early Solar System. Apart from size and distance from our sun, they're very different: which also makes them intriguing places to study. Scientists have working ideas about how Vesta and Ceres ended up where they are, but those hypotheses may change when we learn more from the Dawn mission. There's quite a bit of data to work with already, from Dawn's stopover at Vesta.... More at A Catholic Citizen in America .

Mutant Cows, Mass Migrations, and a Brain Gene

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Bovine tuberculosis may not be a big problem, if Ministry of Agriculture in Northwest A&F University, Yangling, research pays off. Meanwhile, we may be learning who made Europe look and sound the way it does today: and scientists at the Max Plank Institute discovered how a uniquely-human gene helps our brains grow.... I've seen attitudes toward science and technology shift, quite a bit. I grew up when quite a few folks still thought human ingenuity would solve all our problems: or at least make "the future" a magical place to live.... More at A Catholic Citizen in America .

From Trilobites to Whales: Getting Bigger

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Those trilobites were huge: in the Cambrian. These days, foot-long critters are common, and not particularly big. Scientists thought related species of animals generally got bigger as they evolved: now a team has evidence to back up that assumption. We still don't know why critters usually get bigger, though. That, and seven "croc" species sharing the same turf in the Amazon Basin — before the Amazon was there — is what I picked for this week's post.... More at A Catholic Citizen in America .

Setting Earth's Thermostat

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Events like the Pinatubo eruptions of 1991 happen about once a century — on average — roughly. Some scientists say that next time there's a Pinatubo-scale eruption, we should deploy a fleet of instrument-carrying aircraft, balloons, and satellites: to see exactly what happens when sulfur dioxide and other chemicals get dumped into the upper atmosphere. We know that the stuff causes regional and global climate changes: but we don't know exactly how the process works. There's more than pure scientific curiosity behind wanting this knowledge. Earth's climate is changing, which is par for the course: but we're at a point where our actions can affect climate. The job at hand is leaning how Earth's climate works, how it changes, and what causes the changes. Then we'll decide what to do about that knowledge.... More at A Catholic Citizen in America .