Subscribe to:
Post Comments (Atom)
-
In the last batch of simulations, we dropped a long gas stream into the gravitational potential of a cluster to see if it would get torn... -
Another day, another paper on how exciting Ultra Diffuse Galaxies are. At first, these large, faint galaxies were just wholly unexpected, a...
-
Of course you can prove a negative. In one sense this can be the easiest thing in the world : your theory predicts something which doesn...
Except for the Lectroids. Planet 9 has to be there for there to be a planet 10.
ReplyDeleteOo, time vault this post, though I tend to agree.
ReplyDeleteQuestion: assuming it exists, what is the likelihood that we can directly image this object? Until then, everything else is just inference.
It's rather like when you hear announcements of potential habitable exoplanets. Hopefully we will soon be measuring the rough chemical composition of the atmospheres of these worlds, but even then we won't be able to drop the "potentially" because there will undoubtably be nonbiological explanations.
So we'll get this list of worlds that may, or may not, have life, and then what?
Well, if I am reading the articles correctly, the evidence is much the same as for the intra-Mercurial planet Vulcan. Which was based on pre-relativity gravitational calculations.
ReplyDeleteI met a guy at a AAS meeting a couple of years ago who was still looking for Vulcan...
ReplyDeleteRobert Minchin I found Vulcan. It's right over there near Romulus and Remis. Those three do NOT get along.
ReplyDeleteI read an internet article that debunking Planet 9 is lead by purple with green polka dot aliens that hide themselves on Earth as astrophysicists.
ReplyDeleteI've been pretty much dismissing it the whole time I've heard of it. Glad I'm not the only one! Just reading the headlines and blurbs, I could hardly be bothered to even say "blah, blah, blah".
ReplyDeleteIn other news, an infinite number of straight lines can be drawn through a single point.
Would you care to elaborate why it is to be dismissed? I get that it's far from the first time a "new planet is inferred!" but could you explain what makes this time's arguments flimsy?
ReplyDeleteI've heard about the Kuiper orbits all bunched up and a probe trajectory model that the planet would help, but with no idea what they are worth.
Mike Brown is no fool. I'm betting that it's there, and that we'll spot it within the next 5 years.
ReplyDelete/sub
ReplyDelete(mainly for the answers to Mike's and Elie's questions)
It just seems to me that they are making incredibly strong claims from extremely flimsy evidence :
ReplyDelete"“It's such a long history of people being basically wrong that standing up and saying we're right this time makes us almost look crazy," Dr Brown said. "Except I'm going to stand up and say we're actually right this time."
http://www.independent.co.uk/news/science/planet-9-what-we-know-about-this-new-mysterious-dark-world-a6826156.html
That sort of "we're definitely right" attitude may be fine if you're NGT but it's ridiculous if you're doing actual research. Coupled with Brown's self-labelling as a Pluto killer, the word, "grandstanding" leaps to mind like a kangaroo on a trampoline. The current definition of planet is bloomin' daft anyway. This smacks of glory hunting.
http://www.bbc.co.uk/news/science-environment-35365323
http://astrorhysy.blogspot.cz/2015/07/its-planet-deal-with-it.html
Then there's the evidence itself. Six objects. Six ! From which they infer a clustering probability of 0.007% by chance. Yeah.... really ? Seems to me that that's a crazy-small population of objects to draw any firm conclusions from. There could be any number of as-yet undiscovered objects out there which don't show the same clustering. The idea of a giant planet as the only explanation feels like building a house of cards.
http://www.scpr.org/news/2016/01/20/56964/caltech-researchers-answer-skeptics-questions-abou/
#NotImpressed
What about using it as a "sling shot" accelerator for a trip to Alpha Centauri with the NASA EM (kinda, maybe, partial) warp drive?
ReplyDeletehttp://www.nasaspaceflight.com/2015/04/evaluating-nasas-futuristic-em-drive/
what if there are already dino living on that planet?
ReplyDelete