Starship Asterisk*

Nice video. I've done scale modeling with students on a half kilometer radius stretch, with a sun about the size of a softball at one end. Chris, how is gravitationally warped space-time intuitive, for scientists or anyone?? I felt the desert demonstration would have been even better if they had sim...

I agree with 31 plus a couple plumes.

The CHA actually nearly parallels [ie. as an arc of a concentric circle with] the horizon, so does not correspond to an angle with respect to the central line of light/sight. In an unusual halo phenomenon in Seattle a couple years ago, there was a CHA projected nearly 30 degrees to both left and rig...

I'm curious how one envisions fuel discharging with a sphere that moves along with its center... wouldn't that produce more of a wake shape or possible a spiral? In order to retain the spherical/circular form, would not the object have to be moving relatively away from or toward the observer? The ha...

This picture also shows the circumhorizontal halo, produced by the same effects as the sundogs, as well as the pillar of fire produced by columnar ice crystals tumbling down parallel to the horizon.

How does Dr. Bonnell feel about the Electric Universe theory? It seems to be gaining a large following, and presents some provocative information. Has he looked into it at all, or does he have any strong case evidence against it? [quote="JTB"] Actually, a former colleague and friend of min...

Whether it's the temperature gradient of astrolabe or the wind shear mixing factor of pmanson , these two explanations make the most physical sense to me. This is clearly an optical/lensing event, and a movie of the event might be insightful as to the wind option. I wonder if the photographer has of...