Mercury’s surprising density: What about magnets?
A new model explains Mercury’s major density with magnetism.
Can gamma ray bursts be used as standard candles?
Some GRB-SNe pairs show interesting correlations across their light curves.
Bars: Star Mixologists
Can bars in a galaxy cause radial migrations of stars? The simulations say yes, but these observations suggest otherwise…
Harvesting Deep Images from the Web
Today’s authors present a way to get deep images without telescope time. Their method involves a clever compilation of sky images from the Web. The algorithm, called Enhance, synthesizes a collection of short-exposure images gleaned from the Web to produce a deep image.
Fishing for Jellyfish in Galaxy Clusters
The evolution of galaxies from one type to another is not well understood. A galaxy’s environment plays a key role in its evolution. This is especially important for galaxies in galaxy clusters, which can strip them of their gas. The authors in today’s Astrobite explore six new, dramatic examples of galaxies being stripped of their gas.
Iapetus: Growing Up in a Rough Neighborhood
Saturn’s moon Iapetus has been bombarded pretty heavily by debris from the outer Solar System. But it’s not TOO smashed up — its strange, 20-km-high, equatorial ridge is still standing. The authors of this paper simulate the bombardment of Iapetus to figure out how much mass could have collided with the moon without destroying the ridge.