How Common Are Long-Period Jupiters Around Massive Stars?
What fraction of massive stars host gas giants? Vigan et al. observe a sample of A and F stars to find out.
Is that a planet?
Is it a comet or a planet?
How to count stars you can’t see: the stellar IMF in distant galaxies
Van Dokkum & Conroy examane the variation of the stellar initial mass function by observing the integrated light from early-type galaxies.
Red spirals are not dead
The discovery of a population of red spiral galaxies has caused astronomers to questions the relation between galaxy color and morphology: a closer look at their star formation rates reveals a clearer picture.
Data Overload: How to Deal with Multidimensional Data Sets
Astronomers love data, but how can we visualize multiple dimensions of data simultaneously? What should astronomers do to extract as much information as possible from our hard-earned data?
Viewing the Zodiacal Light
The zodiacal light may look beautiful, but it can get in the way of important observations. This paper suggests improvements to models of the dust cloud using observations from the Spitzer Space Telescope.