There are far fewer house-sized near-Earth objects in our solar system than scientists thought. But why that doesn't lower the chance of one hitting the Earth.
Discussion of the Supreme Court's decision to uphold healthcare act
The U.S. Supreme Court has upheld the Affordable Care Act. The court upheld the act by a 5-4 decision, with Chief Justice Roberts writing the majority opinion. KJZZ's Dennis Lambert spoke with Pete Wertheim of the Arizona Hospital Association about the ruling.