25 June 2018

May/June Links

Recent analysis of Magellan data suggests that Venus may have plate tectonics unlike those observed on Terra and Mars. This intermediate form may be a product of Venus' unusual atmosphere-interior combination, which makes the crust a lot more fluid than on other terrestrial planets.

After 46 years out-of-print, new copies of John D. Clark's rocketry history Ignition! are finally available. Get your copy from Amazon, Barnes & Noble, or directly from Rutgers University Press.

Scott Alexander and his readers discuss basic income versus basic jobs.

Here's an interesting optical illusion: the Troxler effect. Stare at this fuzzy image long enough, and your eyes or brain will edit out the entire thing. Wikipedia says that the cause is still uncertain.

Does studying ethics increase ethical behavior? There's not enough research to tell for sure, but initial results aren't exactly promising. Depending on what future studies find, this may help open up some space in undergraduate curricula.

Speaking of opening up space, Falcon 9 fairing recovery is coming along.

NASA extends the Juno mission to 2021. The spacecraft was supposed to enter the Jovian atmosphere later this year, but that timeline was based on a 14-day orbital period. Propulsion system issues in 2016 precluded this, however, and Juno remains on its initial 53-day orbit. This extension will allow scientists to complete their observational plan.

How to talk like Mr. Rogers.

Charles Stross explains why books are the length they are. Unsurprisingly, the answer has more to do with technology and economics than literary tastes and artistic merits.

Supreme Court rules that cell phone location data requires a warrant under the Fourth Amendment.