Shaun Nichols discusses the stories that made the headlines in Silicon Valley this week.
Today's podcast covers Oracle OpenWorld and Larry Ellison's keynote, a controversial US copyright law, and SanDisk's deal with the big record labels.
So-called ghost galaxies aren't necessarily small but can be difficult to detect due to their very low star power
Ironically, solar panels installed in the colder north are the most affected by hot spots
The Mars Opportunity rover captured the images on its 5,000th day on the Red Planet
The galaxy is losing its hydrogen and the ability to form new stars