Images of the small, icy Uranus moon Miranda were particularly surprising. Since small moons tend to cool and freeze over rapidly after their formation, scientists had expected a boring, ancient surface, pockmarked by crater-upon-weathered-crater. Instead they saw grooved terrain with linear valleys and ridges cutting through the older terrain and sometimes coming together in chevron shapes. They also saw dramatic fault scarps, or cliffs. All of this indicated that periods of tectonic and thermal activity had rocked Miranda’s surface in the past. (more…)
Tag Archives: Miranda
Flickr says that by Oct 12 2009, it uploaded 4 billion photos. Flickr was born in Ferbruay 2004.
Facebook says that it’s the largest photo-sharing site with over 2.5 billion photos uploaded to the site each month. Facebook was born in 2004 in Harvard dormitory, fathered by Mr. Mark Zuckerberg. 🙂