From Keck: “The Dark Matter Conspiracy”

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Keck Observatory

Keck Observatory

Keck Observatory

April 29, 2015
MEDIA CONTACT
Steve Jefferson
W. M. Keck Observatory
sjefferson@keck.hawaii.edu
808.881.3827

1Example of mapping out and analyzing the speeds of stars in an elliptical galaxy. Blue colors show regions where the stars are hurtling toward the observer on Earth, and red colors show regions that are moving away, in an overall pattern of coherent rotation. The top panel shows the original data, as collected using the DEIMOS spectrograph at the W.M. Keck Observatory. The bottom panel shows a numerical model that matches the data remarkably well, from using the combined gravitational influence of luminous and dark matter. Credit: M. Cappellari and the SLUGGS team

2The speeds of stars on circular orbits have been measured around both spiral and elliptical galaxies. Without dark matter, the speeds should decrease with distance from the galaxy, at different rates for the two galaxy types. Instead, the dark matter appears to…

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From ESA: “Tracking Japan’s asteroid impact mission”

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European Space Agency

29 April 2015
No Writer Credit

1Hayabusa-2 dispatches European Mascot lander

ESA is set to support Japan’s ‘touch-and-go’ Hayabusa-2 spacecraft, now en route to a little-known asteroid, helping to boost the scientific return from this audacious mission.

A flawless launch last December marked the start of a six-year round-trip for Japan’s Hayabusa-2, which is on course to arrive at the carbon-rich asteroid 1999 JU3 in June 2018.

Once there, it will study the surface in detail in preparation for dispatching three diminutive landing drones. It will also deliver the Mascot lander, developed by the DLR German Aerospace Center in cooperation with France’s CNES space agency and equipped with a ‘hopper’ mechanism to enable it to explore the tiny world from multiple locations.

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MASCOT

Hayabusa will also use explosives to fire a copper impactor into the 980 m-diameter asteroid, then scoop up the debris fragments in…

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Lomborg, Ridley and Power to the People

Bang on.

The Lukewarmer's Way

Bjorn Lomborg has been invited by the Australian government via the University of Western Australia to relocate the Copenhagen Consensus Center to the lucky country. I wish him well in his new surroundings.

News of this has revived the muttering and outright ranting about how Evile!!! Lomborg is. This is because the policy conclusions of the Consensus Centre (and Lomborg in his writings prior to the CC being established) shows that investing in renewable energy and other mitigation and adaptation measures regarding climate change is less effective at improving health and raising living standards in the developing world than other measures, such as insuring access to micro nutrients, suppressing and treating malaria, etc.

Obviously, Lomborg and the CC are right. Nicholas Stern estimates the cost of dealing with climate change at between 1% and 5% of global GDP. Providing micro nutrients for the poor costs pennies per person. The only…

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