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Assorted Personal Notations, Essays, and Other Jottings

Posts Tagged ‘sn 1987a

[NEWS] Five science links: ancient humans, animal minds, green Asia, generation starships, SN1987A

  • Quanta Magazine notes that the deep learning offered by new artificial intelligences can help pick out traces of non-homo sapiens ancestry in our current gene pool.
  • This sensitive article in The Atlantic examines the extent to which consciousness and emotion are ubiquitous in the world of animals.
  • NASA notes evidence of the great greening of China and India, associated not only with agriculture in both countries but with the commitment of China to reforestation projects.
  • Mashable examines the fundamental brittleness of closed systems that will likely limit the classical generation starship.
  • SciTechDaily notes new observations of SN 1987A revealing a much greater prediction of dust than previously believed.

[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] 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 Wednesday links

  • Anthro{dendum}’s Adam Fish looks at the phenomenon of permissionless innovation as part of a call for better regulation.
  • James Bow shares excerpts from his latest book, The Cloud Riders.
  • Bruce Dorminey notes how data from Voyager 1’s cosmic ray detectors has been used to study dark matter.
  • Lawyers, Guns and Money begins a dissection of what Roe vs Wade meant, and means, for abortion in the United States, and what its overturn might do.
  • Ilan Stavans, writing for Lingua Franca at the Chronicle, considers the languages of the World Cup. The prominence of Spanish in the United States is particularly notable.
  • The LRB Blog gathers together articles referencing the now-departed Boris Johnson. What a man.
  • The Map Room Blog reports/u> on Matthew Blackett’s remarkably intricate transit map of Canada.
  • Alex Tabarrok at Marginal Revolution links to a study from Nature exploring how shifts in the definition of concepts like racism and sexism means that, even as many of the grossest forms disappear, racism and sexism continue to be recognized if in more minute form.
  • Starts With A Bang’s Ethan Siegel looks at how a Japanese experiment aimed at measuring proton decay ended up inaugurating the era of neutrino astronomy, thanks to SN1987A.
  • Window on Eurasia reports on how a Russian proposal to resettle Afrikaner farmers from South Africa to the North Caucasus (!) is, unsurprisingly, meeting with resistance from local populations, including non-Russian ones.
  • Linguist Arnold Zwicky takes a look at how, exactly, one learns to use the F word.