[BLOG] Some Thursday links

[rfmcdonald]

• Centauri Dreams considers the possibility of carbon dioxide being a biosignature in the atmospheres of exoplanets.


• D-Brief notes the discoveries of Hayabusa2 at asteroid Ryugu, including the possibility it was part of a larger body.


• Gizmodo links to a new analysis suggesting the behaviour of 'Oumuamua was not so unprecedented after all, that it was a simple exocomet.


• JSTOR Daily looks at Agnes Chase, an early 20th century biologist who did remarkable things, both with science and with getting women into her field.


• Robert Farley at Lawyers, Guns and Money links to a new article of his analyzing the new aircraft carriers of Japan, noting not just their power but the effective lack of limits on Japanese military strength.


• Marginal Revolution notes the substantial demographic shifts occurring in Kazakhstan since independence, with Kazakh majorities appearing throughout the country.


• Neuroskeptic considers if independent discussion sections for online papers would make sense.


• The NYR Daily shares a photo essay by Louis Witter reporting on Moroccan boys seeking to migrate to Europe through Ceuta.


• Roads and Kingdoms has an interview with photographer Brett Gundlock about his images of Latin American migrants in Mexico seeking the US.


• Starts With A Bang's Ethan Siegel explores the mass extinction and extended ice age following the development of photosynthesis and appearance of atmospheric oxygen on Earth two billion years ago.


• Window on Eurasia notes that, in Karabakh, Jehovah's Witnesses now constitute the biggest religious minority.