Jon Voisey
Trojans May Yet Rain Down
It would be an interesting survey to catalog the initial reactions readers have to "Trojans". Do you think first of…
Does a “Rock Comet” Generate the Geminids?
[/caption] Many annual meteor showers have parent bodies identified. For example, the Perseids are ejecta from the comet, Swift-Tuttle and…
Possibility for White Dwarf Pulsars?
[/caption]Some satellites get all the glory. While Hubble, Chandra, and Spitzer frequently make headlines with their stunning images, many other…
Electric Resistance May Make Hot Jupiters Puffy
One of the surprises coming from the discoveries of the class of exoplanets known as "Hot Jupiters" is that they…
The Case of the Missing Bulges
The Hubble sequence is astronomer's main tool for classifying galaxies. On one side, you have elliptical galaxies with defined structure.…
Disturbance in the Force – A Spatially Varying Fine Structure Constant
[/caption] In order for astronomers to explore the outer reaches of our universe, they rely upon the assumption that the…
The Hercules Satellite – A Galactic Transitional Fossil
[/caption] On Friday, I wrote about the population of the thick disk and how surveys are revealing that this portion…
Type II-P Supernovae as a New Standard Candle
[/caption] Much of astronomical knowledge is built on the cosmic distance ladder. This ladder is built to determine distances to…
The Thick Disk: Galactic Construction Project or Galactic Rejects?
[/caption] The disk of spiral galaxies is comprised of two main components: The thin disk holds the majority of stars…
Follow-up Studies on June 3rd Jupiter Impact
[/caption] Poor Jupiter just can't seem to catch a break. Ever since 1994, when our largest planet was hit by…