Saturday, October 03, 2009

Mercury Bright Spot

In 1974-75 Mariner 10 flew by Mercury 3 times. No spacecraft has visited the innermost planet since then, but since 2008 MESSENGER has flown by Mercury 3 times on its own preparing for an orbit in 2011. Most of the planet's surface has been unseen by humans until MESSENGER. One discovery is this mysterious bright spot, surrounding a depression similiar to volcanic craters on Hawaii.

Since Mariner 10 the planet has been known to have a magnetic field and be unusually dense. The magnetic field is sign that Mercury contains a tiny Black Hole. The singularity would be too tiny to suck Mercury up, but the small amount it does eat would be converted into radiation. Outward radiation pressure would balance gravity's inward pull until an equilibrium is achieved. Mercury would then have a hot interior, which would occasionally well up as volcanic action. Like volcanic craters on Earth, this bright spot could be sign of a Black Hole in Mercury.

The ellipse of Mercury's orbit precesses at 5600 arc seconds per century, yet an anomaly of only 43 arc seconds per century provided one proof of General Relativity. The solar system is full of orbital anomalies. As readers of this blog know, the Moon appears to be receding far too fast as measured by laser ranging. The lunar orbit anomaly is prime evidence that the speed of light is changing today.

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Anonymous Bjoern said...

You said:
"As readers of this blog know, the Moon appears to be receding far too fast as measured by laser ranging. The lunar orbit anomaly is prime evidence that the speed of light is changing today."

But what about work showing that the recession speed of the moon depends on the arrangement of the continents on Earth? As far as I know, calculations have shown that e. g. during the time of Pangea (one single massive continent), the effect of tidal friction had been much smaller than today, which explain the slower recession speed of the moon in those days without invoking a changing speed of light.
For a detailed explanation, see e. g. here:

10:46 PM  
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Blogger L. Riofrio said...

Sorry if I can't reply to all comments, boys, but some people will never be convinced by any amount of data or calculations.

10:24 AM  
Anonymous Bjoern said...

I merely asked you (3 times already) to explain why the already existing alternative explanation, which doesn't need a changing speed of light, is in your opinion not right (or not enough, or whatever). Why is it so hard for you to address this question?

3:33 AM  
Anonymous Anonymous said...

Good Post! I am a college sophomore with a dual major in Physics and Mathematics @ University of Canterbury in Christchurch, New Zealand. One of my Professors was discussing about the Mercury spots in one of our classes the other day. By the way, i came across these excellent physics flashcards. Its also a great initiative by the FunnelBrain team. Amazing!!!

10:41 PM  
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