A Bit More Detail

Assorted Personal Notations, Essays, and Other Jottings

Posts Tagged ‘Sagittarius A*

[BLOG] Some Thursday links

  • Bad Astronomer Phil Plait takes a look at the German city of Nordlingen, formed in a crater created by the impact of a binary asteroid with Earth.
  • Centauri Dreams reports on the possibility that the farside of the Moon might bear the imprint of an ancient collision with a dwarf planet the size of Ceres.
  • D-Brief notes that dredging for the expansion of the port of Miami has caused terrible damage to corals there.
  • Dangerous Minds looks at the last appearances of David Bowie and Iggy Pop together on stage.
  • The Dragon’s Tales notes that China is on track to launch an ambitious robotic mission to Mars in 2020.
  • Karen Sternheimer at the Everyday Sociology Blog talks about what sociological research actually is.
  • Gizmodo reports on the discovery of a torus of cool gas circling Sagittarius A* at a distance of a hundredth of a light-year.
  • io9 reports about Angola Janga, an independent graphic novel by Marcelo D’Salete showing how slaves from Africa in Brazil fought for their freedom and independence.
  • The Island Review shares some poems of Matthew Landrum, inspired by the Faroe Islands.
  • Joe. My. God. looks at how creationists are mocking flat-earthers for their lack of scientific knowledge.
  • Language Hat looks at the observations of Mary Beard that full fluency in ancient Latin is rare even for experts, for reasons I think understandable.
  • Melissa Byrnes wrote at Lawyers, Guns and Money about the meaning of 4 June 1989 in the political transitions of China and Poland.
  • Marginal Revolution notes how the New York Times has become much more aware of cutting-edge social justice in recent years.
  • The NYR Daily looks at how the memories and relics of the Sugar Land prison complex outside of Houston, Texas, are being preserved.
  • Jason C Davis at the Planetary Society Blog looks at the differences between LightSail 1 and the soon-to-be-launched LightSail 2.
  • The Power and the Money’s Noel Maurer looks in detail at the high electricity prices in Argentina.
  • Peter Rukavina looks at the problems with electric vehicle promotion on PEI.
  • Starts With A Bang’s Ethan Siegel looks at when the universe will have its first black dwarf. (Not in a while.)
  • Window on Eurasia suggests that Belarusians are not as interested in becoming citizens of Russia as an Internet poll suggests.
  • Arnold Zwicky highlights a Pride Month cartoon set in Antarctica featuring the same-sex marriage of two penguins.

[NEWS] Five space science links: Planet Nine, Ultima Thule, Orion Nebula, Sag A*, SN 1987A

  • This article by Shannon Stirone at Longreads takes a look at the long, lonely search for Planet Nine from the top of Mauna Kea.
  • Universe Today shares a high-resolution photograph of Ultima Thule.
  • Universe Today explains how the new crop of young stars in the Orion Nebula disrupt the formation of other stellar bodies.
  • Phys.org shares this amazing photograph of Sagittarius A* at the heart of our galaxy.
  • The shockwaves from Supernova 1987A in the Large Magellanic Cloud, Universe Today notes, are still crashing into the neighbouring interstellar medium, revealing more secrets to astronomers.

[NEWS] Six D-Brief links: Sagittarius A*, GRBs, Saturn, Planet Nine, Earth, starlight

  • Are the radio jets of Sagittarius A* at the heart of our galaxy pointed directly at Earth? D-Brief reports reports.
  • Astronomers might finally have established a firm connection between supernovas and gamma-ray bursts. D-Brief reports reports.
  • The length of a day on Saturn has finally been established, at just over 10 hours and 33 minutes. D-Brief reports reports.
  • The supposed signature of Planet Nine might be a creation not of a ninth planet but rather by a thick distant belt of objects. D-Brief reports reports.
  • Did the collision of protoplanet Theia with the young Earth seen the subsequent world with the materials needed for life? D-Brief reports reports.
  • The very idea of an encyclopedia of galactic starlight is profoundly poetic, to say nothing of its scientific uses. D-Brief reports reports.

Written by Randy McDonald

January 26, 2019 at 9:30 pm

[BLOG] Some Thursday links

  • Anthro{dendum} considers ways to simulate urgency in simulations of climate change.
  • Bad Astronomer Phil Plait considers what could possibly have led to a Mars crater near Biblis Patera, on Tharsis, having such a flat bottom.
  • Caitlin Kelly at the Broadside Blog gives readers some tips as to what they should see in New York City.
  • Centauri Dreams notes some of the early returns sent back by the OSIRIS-REx probe from asteroid Bennu.
  • The Crux notes the limits of genetic determinism in explaining human behaviour, given the huge influence of the environment on the expression of genes and more.
  • D-Brief suggests that the rapid global dispersion of the domestic chicken, a bird visibly distinct from its wild counterparts, might make an excellent marker of the Anthropocene millions of years hence.
  • Bruce Dorminey notes that Comet 46 P/Wirtanen is set to come within a bit more than eleven million kilometres of the Earth next week, and that astronomers are ready.
  • L.M. Sacasas at The Frailest Thing suggests that the Internet, by exposing everything, makes actual innovation difficult.
  • JSTOR Daily takes a look at the innovative art of early 20th century Expressionist Charlotte Salomon, a person not only groundbreaking with her autobiographical painting series but linked to a murder mystery, too.
  • Anne Curzan writes at Lingua Franca about what she has learned in six years about blogging there abut language.
  • Sara Jayyousi writes at the LRB Blog about her experiences over time with a father imprisoned for nearly a decade and a half on false charges of supporting terrorism.
  • Marginal Revolution shares Tyler Cowen’s argument that Macron’s main problem is that he lacks new ideas, something to appeal to the masses.
  • Sylvain Cypel at the NYR Daily argues that Macron, arguably never that popular, is facing a Marie Antoinette moment, the Yellow Jackets filling the place of the sans culottes.
  • Drew Rowsome rightly laments the extent to which social media, including not just Facebook but even Tumblr, are currently waging a war against any visible sex in any context.
  • Starts With A Bang’s Ethan Siegel explains how, in 2019, astronomers will finally have imaged the event horizon around the black hole Sagittarius A* at the heart of the Milky Way Galaxy.
  • Window on Eurasia reports on polls which suggest that young Belarusians are decidedly apolitical.

[BLOG] Some Friday links

  • Architectuul shares the latest issue of the journal Archifutures, reporting on strategies for adapting to apocalyptic enviroments.
  • Bad Astronomer Phil Plait breaks down for readers the import of the sighting of material on the fringes of the event horizon of Sagittarius A*.
  • The Broadside Blog’s Caitlin Kelly talks about zhush, the act of renewing one’s home as winter approaches.
  • Centauri Dreams notes the fine-tuning of hypothetical mechanisms for delivering water to the Earth (and other inner worlds) during the Late Heavy Bombardment period.
  • D-Brief notes the identification in many ancient human skeletons of deformities likely product of inbreeding.
  • Dangerous Minds links to a fascinating documentary looking at the culture of tribute bands.
  • Drew Ex Machina reports on the earliest stages of the space race, in both the Soviet Union and the United States.
  • Hornet Stories notes that Sasha Velour is off to the Smithsonian to give a speech on the importance of drag in culture.
  • JSTOR Daily reports on the parlous environment of the Mediterranean Sea, with sea level rise and pollution promising to make a mess.
  • Language Hat notes how, in France, the concept of being “excited” that exists in the Anglophone world and in French Canada may not be represented in the local French.
  • Language Log considers, in the context of the recent Sokal Squared hoax, the ethnographic peculiarities of academia.

[NEWS] Five D-Brief links about space: LandSpace in China, Mars, ‘Oumuamua. Sagittarius A*, SN 1987A

  • D-Brief notes that China’s first privately-funded rocket launch, organized by company LandSpace, failed to reach orbit.
  • As Mars dried out, D-Brief notes, ephemeral lakes formed on the relatively deep and warm surface of the Hellas basin when circumstances permitted.
  • ‘Oumuamua, D-Brief observes, is much more likely a natural object, exhibiting some sort of cometary behaviour, than it is to be an alien spacecraft.
  • D-Brief goes into detail about the detection of infrared radiation flares around Sagittarius A*, at the heart of our galaxy, that reveal that ultra-compact object to be a black hole.
  • This time-lapse image of the expanding debris from Supernova 1987A, provided by D-Brief, is beautiful.

[BLOG] Some Saturday links

  • Bad Astronomer Phil Plait shares photos of a dust storm over Greenland.
  • The Crux looks at the hypervelocity stars of the Milky Way Galaxy, stars flung out towards intergalactic space by close encounters with the galactic core.
  • D-Brief notes a study suggesting that the gut bacteria of immigrants to the United States tends to Americanize over time, becoming less diverse.
  • Joe. My. God. notes yet another homophobe–this time, an ex-gay “therapist”–who has been outed as actively seeking gay sex.
  • JSTOR Daily notes that bears preparing to build up their fat stores for hibernation really have to work hard at this task.
  • Language Hat notes, after Elias Canetti, a benefit of being multilingual: You can find out if people near you are planning to kill you.
  • Lawyers, Guns and Money recounts an anecdote from the 1980s revealing the great racism on the part of Donald Trump.
  • Sadakat Kadri at the LRB Blog notes a gloomy celebration in Prague of the centenary of the 1918 foundation of Czechoslovakia, gloomy not just because of the weather but because of the rhetoric of Czechia’s president.
  • The Map Room Blog notes a new book examining the political and military import of mapmaking in Scotland.
  • Cheryl Thompson at Spacing writes about the long history of blackface in Canadian popular culture, looking at the representations it made and the tensions that it hid.
  • Starts With A Bang’s Ethan Siegel looks at how new technologies are allowing astronomers to overcome the distorting effects of the atmosphere.
  • Frances Woolley at Worthwhile Canadian Initiative, looking at female employment in Canada, finds the greatest potential for further growth in older women. (Issues, including the question of how to include these women and how to fight discrimination, need to be dealt with first.)