I found this beautiful image of the asteroid Lutetia on The Planetary Society Blog (Color Portrait of Asteroid 21 Lutetia by Emily Lakdawalla, Jul. 21, 2010) that was captured by Rosetta on July 10, 2010. As you can see it has a beautiful and unusual color. I was particularly struck by the following comment:
When he sent me the image, Ted remarked to me something that I’d been thinking: “That is one funky crater on the terminator. I would probably suspect it was of something other than impact origin if it was on, say, the Moon.” I totally agree. It’s just not the right symmetrical shape, and it has a weird round lip at its edge, and that dark halo above it. I’ve got no idea what it is, but it doesn’t look like the other craters.
This is astounding:
From the article ..
Sun Unleashes ‘Spectacular’ & Powerful Eruption
The solar storm hit its peak at about 2:41 a.m. EDT (0641 GMT), but the actual flare extended over a three-hour period, said C. Alex Young, a solar astrophysicist at NASA’s Goddard Space Flight Center who runs a website called The Sun Today, in a video describing the event.
“The sun produced a quite spectacular prominence eruption that had a solar flare and high-energy particles associated with it, but I’ve just never seen material released like this before,” Young said. “It looks like somebody just kicked a giant clod of dirt into the air and then it fell back down.”
For some fascinating discussion on this beautiful and awe-inspiring event go here.
This is an absolutely stunning image that you can find here. For some interesting commentary on the Antennae Galaxies from an Electric Universe perspective, check out Thunderbolts Picture Of the Day. Enjoy 🙂
I have been following the work of Wal Thornhill by reading the excellent posts at his website, The Electric Universe. While you are there, you can follow the links to Thunderbolts .. where you can find this excellent article. Of particular interest to me were his references to Ralph Juergens and the following quote:
The idea of turbulent convection delivering endless loads of energy upward from the unseen depths of the Sun conflicts not only with the ordered structure of the photosphere but also with the observable integrity of individual granules. The nodules of plasma appear, endure for some minutes, then fade away… Minnaert once published an analysis of photospheric behavior in terms of the Reynolds number. He found the critical value to lie near 103. The actual Reynolds number of the photosphere, as calculated from observable characteristics of the plasma, turned out to be in excess of 1011, which is to say, at least 100 million times greater than the critical value. Clearly, then, any convective motion in the photosphere should be violently turbulent and highly disordered, as Minnaert indeed pointed out. Practically in his next breath, however, Minnaert asserted that ‘The variable forms of the granules and their short lifetimes are evidence of nonstationary convection.’ Such an abrupt about-face is startling. Apparently Minnaert, himself, was disquieted; he immediately set out to minimize his non sequitur by suggesting ways and means for disregarding the classical theory of turbulence to make things come out right for the photosphere.
– Ralph E. Juergens.
I found this at the excellent Thunderbolts site, their latest Picture of the Day. What you see is an image of the Crab Nebula taken by the Chandra X-Ray Observatory, revealing what is described as “astonishing structure and energy levels”.
We are constantly being bludgeoned about the head with the notion that the universe is dominated by gravity and that electrical currents and magnetic fields (which are only 40 orders of magnitude stronger than gravity) have no significant influence on stars, galaxies, pulsars, etc. As you can tell from the above image, this is emphatically not the case. My favorite takeaway from this article is the following (emphasis mine):
A neutron star has so much matter squeezed into it that the electrons have been squeezed into the nucleus to combine with the protons there and form neutrons. The uncharged neutrons are then packed together, as congested as commuters at rush hour. The pulsations of the pulsar are attributed to a hot spot on its surface that sends a flash of radiation with each rotation of the star. Its operation is analogous to a lighthouse light, back when such lights were mechanically rotating devices, before they were converted to electrically pulsed lamps.
The Crab Nebula’s pulsar pulses 30 times a second. This would mean that the star rotates 30 times a second. This would mean that the centrifugal force is stronger than the star’s gravity … which would mean that the star tore itself apart a long time ago, except that consensus opinion crammed in additional matter to bump up the mass sufficiently to increase the gravitational force enough to hold it together.