Comments on Mike Brown's Planets: Sea Salt (part 1)
I dugg some of you post as I cogitated they were e...I dugg some of you post as I cogitated they were extremely helpful invaluable.
I love smoothies and this one looks so yummy!
I love smoothies and this one looks so yummy!<br />
ESA is not much better. The European Space Agency ...ESA is not much better. The European Space Agency is somehow excited about its newly approved "JUICE" mission, that will put a satellite probe around a few of Jupiters icy moons by, get this, 2028.<br /><br />Nothing on the surface of any of these moons, of course. Instead the sattelite will just further evaluate the general potential for life at a distance, putting any real prospect of landing where the definitive evidence is well into the 2030s. <br /><br />This seems woefully short sighted. There are times when boldness and risk-taking are required in the pursuit of great science. Instead we see ESA and NASA frittering away one of the greatest potential scientific inquiries of our lifetime, burying and deferring decisive action for decades.
Given the extremely low priority given to plans to...Given the extremely low priority given to plans to send real life-detecting probes to either Europa or Enceldus, we can all take solace that perhaps our children or grandchildren will at least get to be alive when this actually happens. <br /><br />Not that saltwater oceans on moons in our solar system would actually be a compelling reason to said send life-detecting probes. <br /><br />How silly to think that such probes might actually be the most import important space science mission of all time. Lets just keep ignoring these and keep doing other "more important" stuff.
The problem is not the Enceledus firsters nor is i...The problem is not the Enceledus firsters nor is it the Europa firsters, but rather it is the combination of record NASA budget cuts and the overwhelming organizational inertia of Mars mission self perpetuation. <br /><br />I should say, however that Mars mission folks are absolutely some of the best, the brightest and they sincerely want to do good science. However we need to ask these guys to please, please help to get life-evaluating probes to Europa AND Enceledus before we are all basically, well... DEAD from old-age.
Very interesting article, Mike. Suppose the surfa...Very interesting article, Mike. Suppose the surface was completely painted over? Then we'll have to send people with picks and shovels...<br /><br />Thanks, John Morales. I'm kind of an "Enceladus firster" too, but I'm not very radical about it. Fortunately the People decided to raise their taxes.<br /><br />Mike Emmert
Superb i am pleased to have on this article nice s...Superb i am pleased to have on this article nice sharing...
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There shouldn't be any complex life in the oce...There shouldn't be any complex life in the oceans. Complex life requires oxic oceans. On Earth, (a reasonable proxy) our oceans became oxic only after the Great Oxidation Event, and this was only possible with photosynthetic bacteria (cyanobacteria). There is hardly enough 'open' water, let alone enough sunlight reaching through the ice to allow for enough build up of free oxygen in exchange with the water beneath the ice. If there is any life at all, it will be simple and small (ie. bacteria).
Fun read! Staying tuned for Part 2......Fun read! Staying tuned for Part 2......
The most important question of all: Will we be abl...The most important question of all: Will we be able to train the whales to do tricks and pose for photos like the ones at SeaWorld?
Very well written!
Very well written!<br /><br />
Is not the solar system at Jupiter and beyond redu...Is not the solar system at Jupiter and beyond reduced rather than oxidized? Are the Io SO2 and Europan sulfate anomalies?
Although fascinating, it is quite a complicated no...Although fascinating, it is quite a complicated notion to be hypothesizing about the chemistry on a Jovian satellite. I am not going to be waiting on the edge of my seat for conclusive evidence of salts or a liquid water ocean, let alone one teaming with life.<br /><br />One thing is certain though, we need ethics hearings and discussions if at any time we suspect that life may exist on a world and what to do once life is confirmed.<br /><br />If whales or other life are swimming around in an ocean beneath Europa's icy (water) crust, we need to respect this treasure and allow the wildlife to thrive, unmolested.
boy am I happy to see you on the side of the Europ...boy am I happy to see you on the side of the Europa firsters considering Carolyn Porco is on the side of the Encelidus firsters