An interview with Chris Patil, a Boston-based biologist and scientific writer who wants to go to Mars.
City warns against celebratory gun shooting
The City of Phoenix is issuing its annual warning today against shooting guns into the air this holiday season.A city spokesman says it's a problem twice a year -- at New Year's and the Fourth of July. The spokesman says police can sometimes triangulate to find out where the shots were fired. But when bullets land, they occasionally hit people.