Starship Asterisk*

Besides size, what is the difference between Thackery's globules and Bok globules?

I would love to know about the cause of the circular artifacts. Anyone have an detailed explanation?

This undeniably beautiful pic still seems to have been made with some distortion in size and shape. The distortion comes from the fact that the perspective is presented as if from an NPP satellite a mere 824 kilometers above Earth. At that altitude the edges of the Earth are about 62º off from Nadi...

But Tycho Brahe is prounounced "TEE-ko BRA-hay" To a Canadian the fix is obvious: Tycho! Tycho! burning bright In the darkness of the night, What exploding white dwarf star Did frame thy remnant from afar, In the distant deep dark skies Under gaze of human eyes? Seen by mortals and their m...

The original JPL caption for that photograph reads, "...The fault may be 5 km (3 mi) high, or higher than the walls of the Grand Canyon on Earth.
When and or why did the estimate change to 20 km?

Metals are also something else red dwarfs don't have much of. I can't see a planet with a metallic core forming under those conditions. Little or no metallic core yields an extremely weak magnetosphere or none at all. No magnetosphere suggests no protection against solar radiation and since this one...

The arc is an artifact of the focuser. It's caused by internal reflection inside the main tube.

Here's a good discussion:
http://www.nature.com/news/2006/061120/ ... 20-14.html

The ladies name btw is Caroline Porco. She first looked at the spokes back in the Voyager days.

I was under the impression that the spokes had been identified as being associated with Saturn's magnetic field. One of the Galileo researchers, (She may have been on another probes team), had done some statistical analysis and showed a direct correlation with the spokes and the planets magnetic fie...