Today we started our astronomy projects. First we have to get used to working with the SDSS interface. Everyone picked one of the Favorite Places to get a location in the sky. They then started looking for galaxies that had spectra and recording data.
- The Splitting of the Dunes
The mound in the center of this Mars Reconnaissance Orbiter image appears to have blocked the path of the dunes as they marched south (north is to the left in this image) across the scene. Smaller dunes run perpendicular to some of the larger-scale dunes, probably indicating a shift in wind directions in this area.