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Christophe Praz

Gigantic Ocean Vortices Seen From Space Could Change Climate Models | Science | WIRED - 5 views

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    True! Half the Phd Positions offered are in studying eddy variability. It links to resolving the - yet another holy grail - problem of turbulence.
annaheffernan

Mining the moon - 1 views

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    Mining the moon - now we know that the Moon's poles hold millions of tonnes of water ice, firms in the US as well as the Indian and Chinese space agencies are planning to mine this resource and sell it to space missions as fuel.
jcunha

Metals used in high-tech products face future supply risks - 0 views

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    First peer review study about he criticality of rare-earth metals. It can be read "They found that supply limits for many metals critical in the emerging electronics sector (including gallium and selenium) are the result of supply risks. The environmental implications of mining and processing present the greatest challenges with platinum-group metals, gold, and mercury. For steel alloying elements (including chromium and niobium) and elements used in high-temperature alloys (tungsten and molybdenum), the greatest vulnerabilities are associated with supply restrictions" Questions about estimation apart, this can be a valuable market for asteroid mining.. (ot just more market for Infinium-like companies http://www.technologyreview.com/news/527526/a-cleaner-cheaper-way-to-make-metals/).
Paul N

It's official: NASA announces Mars' atmosphere was stripped away by solar winds - 1 views

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    We finally have an understanding of how Mars transformed from a once habitable, Earth-like planet, into the dry world we see today. NASA researchers have just announced that Mars' once rich atmosphere was stripped away by solar winds in the early days of the Solar System, causing the planet to dry out.
Dario Izzo

Critique of 'Debunking the climate hiatus', by Rajaratnam, Romano, Tsiang, and Diffenbaugh | Radford Neal's blog - 8 views

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    Hilarious critique to a quite important paper from Stanford trying to push the agenda of global warming .... "You might therefore be surprised that, as I will discuss below, this paper is completely wrong. Nothing in it is correct. It fails in every imaginable respect."
  • ...4 more comments...
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    To quote Francisco "If at first you don't succeed, use another statistical test" A wiser man shall never walk the earth
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    why is this just put on a blog and not published properly?
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    If you read the comments it's because the guy doesn't want to put in the effort. Also because I suspect the politics behind climate science favor only a particular kind of result.
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    just a footnote here, that climate warming aspect is not derived by an agenda of presenting the world with evil. If one looks at big journals with high outreach, it is not uncommon to find articles promoting climate warming as something not bringing the doom that extremists are promoting with marketing strategies. Here is a recent article in Science: http://www.ncbi.nlm.nih.gov/pubmed/26612836 Science's role is to look at the phenomenon and notice what is observed. And here is one saying that the acidification of the ocean due to increase of CO2 (observed phenomenon) is not advancing destructively for coccolithophores (a key type of plankton that builds its shell out of carbonates), as we were expecting, but rather fertilises them! Good news in principle! It could be as well argued from the more sceptics with high "doubting-inertia" that 'It could be because CO2 is not rising in the first place'', but one must not forget that one can doubt the global increase in T with statistical analyses, because it is a complex variable, but at least not the CO2 increase compared to preindustrial levels. in either case : case 1: agenda for 'the world is warming' => - Put random big energy company here- sells renewable energies case 2: agenda for 'the world is fine' => - Put random big energy company here - sells oil as usual The fact that in both cases someone is going to win profits, does not correllate (still not an adequate statistical test found for it?) with the fact that the science needs to be more and more scrutinised. The blog of the Statistics Professor in Univ.Toronto looks interesting approach (I have not understood all the details) and the paper above is from JPL authors, among others.
joergmueller

Caltech Researchers Find Evidence of a Real Ninth Planet | Caltech - 0 views

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    Caltech researchers have found evidence of a giant planet tracing a bizarre, highly elongated orbit in the outer solar system. The object, which the researchers have nicknamed Planet Nine, has a mass about 10 times that of Earth and orbits about 20 times farther from the sun on average than does Neptune (which orbits the sun at an average distance of 2.8 billion miles).
Nina Nadine Ridder

Gravitational waves from black holes detected - BBC News - 1 views

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    From the section Science & Environment Scientists are claiming a stunning discovery in their quest to fully understand gravity. They have observed the warping of space-time generated by the collision of two black holes more than a billion light-years from Earth.
Alexander Wittig

Scientists discover hidden galaxies behind the Milky Way - 1 views

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    Hundreds of hidden nearby galaxies have been studied for the first time, shedding light on a mysterious gravitational anomaly dubbed the Great Attractor. Despite being just 250 million light years from Earth-very close in astronomical terms-the new galaxies had been hidden from view until now by our own galaxy, the Milky Way. Using CSIRO's Parkes radio telescope equipped with an innovative receiver, an international team of scientists were able to see through the stars and dust of the Milky Way, into a previously unexplored region of space. The discovery may help to explain the Great Attractor region, which appears to be drawing the Milky Way and hundreds of thousands of other galaxies towards it with a gravitational force equivalent to a million billion Suns. Lead author Professor Lister Staveley-Smith, from The University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR), said the team found 883 galaxies, a third of which had never been seen before. "The Milky Way is very beautiful of course and it's very interesting to study our own galaxy but it completely blocks out the view of the more distant galaxies behind it," he said. Professor Staveley-Smith said scientists have been trying to get to the bottom of the mysterious Great Attractor since major deviations from universal expansion were first discovered in the 1970s and 1980s. "We don't actually understand what's causing this gravitational acceleration on the Milky Way or where it's coming from," he said. "We know that in this region there are a few very large collections of galaxies we call clusters or superclusters, and our whole Milky Way is moving towards them at more than two million kilometres per hour." The research identified several new structures that could help to explain the movement of the Milky Way, including three galaxy concentrations (named NW1, NW2 and NW3) and two new clusters (named CW1 and CW2).
Marcus Maertens

Stuff in Space - 8 views

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    Dynamic map of objects currently orbiting Earth.
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    Shows you stuff... in space!
Marcus Maertens

Neutrino tomography of Earth | Nature Physics - 1 views

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    Seems like those particles have some use...
johannessimon81

Scientists engineer shortcut for photosynthetic glitch, boost crop growth by 40 percent - 3 views

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    Did we just solve overpopulation and climate change? With 40% more efficient crops we could easily sustain 10+ billion people on Earth. And 40% more efficient plants would absorb much more CO2 than we are emitting (currently: artificial CO2 emission ~29 GT/y, photosynthesis CO2 capture through plants ~450 GT/y) I am usually very worried about the risks of climate change, but this could be a real game changer!
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    I love the car animation!
Dario Izzo

GMS: NASA's Van Allen Probes Find Human-Made Bubble Shrouding Earth - 1 views

shared by Dario Izzo on 23 May 17 - No Cached
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    And maybe a good thing about antropocene?
benjaminroussel

Magnet Finge.rs - 2 views

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    Bio-hacking/cyborg: implanting rare-earth magnets into your fingers to sense magnetic fields. At the same time quite awesome and quite extreme.
Marcus Maertens

Giant disco ball to plummet back to Earth - CNN - 3 views

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    The party is over.
Dario Izzo

Space4Life - Lab2Moon - 3 views

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    Cyano bacteria to shield from radiation. An idea from italians flying to the Moon via Team Indus
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    Nice idea, but is it really new: resistance of cyanob. to UV radiation has been known but studies have been inconclusive as to under what resource limitations it works, but according to what we see from evolution: on Earth it works, since they survived pre-ozone atmosphere! some papers from a quick google search: 1999 http://www.tandfonline.com/doi/pdf/10.1080/09670269910001736392 2014 https://www.ncbi.nlm.nih.gov/pubmed/25463663
LeopoldS

Increased core body temperature in astronauts during long-duration space missions | Scientific Reports - 0 views

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    38 degree core body temp in microgravity stabilised after 2 months - due to reduced conv. heat transfer+evaporation https://www.nature.com/articles/s41598-017-15560-w
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    so that's hypopyrexia (augmented concentrations of interleukin-1 receptor antagonist) AND hypothermia (convection/evaportation)? what puzzles me is that temperatures take so long to return to baseline after astronauts return to earth.
darioizzo2

Integrating Machine Learning for Planetary Science: Perspectives for the Next Decade - 3 views

Hey! We also have an added review paper on ML/AI and G&C -> https://link.springer.com/article/10.1007/s42064-018-0053-6, weird they found those other papers instead ... I guess the keyword machine...

AI PHY

LeopoldS

Space station biomining experiment demonstrates rare earth element extraction in microgravity and Mars gravity | Nature Communications - 1 views

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    beautiful research
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