Feeds

Dwarfs threaten Kepler and Newton

Dark matters

  • alert
  • submit to reddit

The Power of One Infographic

The outre model of spiral galaxies as cosmic Faraday motors, espoused by some theorists, is in danger of burning. For the prima facie appeal of that model, the visual and dynamical analogies between a spiral galaxy and an electricity meter becomes that much harder to maintain when the rotor component of the system is missing, as looks to be the case for the dwarf galaxies studied.

The advantage of Mateo's Modified Newtonian Dynamics is that it adjusts the concept of what is evidently already there to account for the observed facts. It requires merely a clarification of the nature (i.e. the properties) of gravity itself.

The alternative speculation, that the presently obscure dark matter will in due course come to light (in a manner of speaking) in the guise of undetected or currently unknown elementary particles, faces what appears to be a much sterner program of describing the distribution and density of these substances of the future to account for the perceived motions of organised stellar populations.

Or, to put it differently, the former needs to venture into the field of metaphysics for salvation, while the latter must take its chances juggling multitudes of vectors within computer model hyperspace. It is, to say the very least, an invidious choice.

While this explanatory face-off has yet to be resolved, Mateo it appears is not above drawing on tactics more commonly associated with prize fighters outside the ring, and more recently with football managers away from the touchlines, in the psychological battle for advantage.

Matteo alleges that Neptune was once "dark matter". But no, this is not apparently a claim entailing alchemical transformations.

Space Daily notes:

"Before the term was even coined, astronomers predicted its [Neptune's] existence based on an anomaly in the orbit of Neptune's neighbor Uranus. They knew just where to look for Neptune."

Say that last sentence again, Prof? ®

Eight steps to building an HP BladeSystem

More from The Register

next story
Malaysian Airlines flight MH17 claimed lives of HIV/AIDS cure scientists
Researchers, advocates, health workers among those on shot-down plane
Forty-five years ago: FOOTPRINTS FOUND ON MOON
NASA won't be back any time soon, sadly
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
Mwa-ha-ha-ha! Eccentric billionaire Musk gets his PRIVATE SPACEPORT
In the Lone Star State, perhaps appropriately enough
MARS NEEDS OCEANS to support life - and so do exoplanets
Just being in the Goldilocks zone doesn't mean there'll be anyone to eat the porridge
Diary note: Pluto's close-up is a year from … now!
New Horizons is less than a year from the dwarf planet
Boffins discuss AI space program at hush-hush IARPA confab
IBM, MIT, plenty of others invited to fill Uncle Sam's spy toolchest, but where's Google?
prev story

Whitepapers

Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.