Each of the several choices available in run 3 for selecting records at random from a database table comes with its own set of advantages and disadvantages. Depending on the specific requirements of the application, one of the methods can be more appropriate than the others.
Elon is probably mad it launched on an Ariane 5 and it went so perfectly, we’ll get an extra decade of science out of it.
The Ariane 5 really was a reliable rocket. It had some failures early on, like basically all rockets, but then it had 82 successful launches in a row and then one partial failure before having another long perfect streak.
Obviously, more expensive than modern reusable rockets but JWST was important enough of a payload, that I’m glad NASA/ESA chose Ariane. (Plus, given JWST’s delays, I imagine when that decision was made, SpaceX was still iterating and having occasional explosions.)
Efficiency is when the government abandons all its investments, lets everything fall apart, and drives all scientists to take jobs abroad before the next uncontrolled pandemic paralyzes the country.
It’ll most likely be avian flu, which is pretty bad. The Trump people are trying to ban MRNA vaccines and cut the vaccine research that might have helped with it.
They found that Callisto’s ionosphere alone cannot explain all existing observations, but that a subsurface ocean in combination with the ionosphere can. Further exploring which scenarios best fit the data, the researchers predicted that the ocean is likely at least tens of kilometers thick, as measured from the top of the liquid ocean to its seafloor, and encased beneath a solid ice shell that itself could range from tens to hundreds of kilometers thick.
Life on Callisto would have a worldview not unlike that of the Krikkiters.
astronomy
Gorące
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