Grand Canyon

  • June 24, 2013  

    In other news Monday, the bipartisan immigration bill cleared a major test in the Senate with votes to spare. Senators voted to debate an amendment that calls for $30 billion over 10 years to double border patrol and build 700 miles of fences. Also, flooding in Northern India has now claimed over 1,000 lives. Continue reading

  • November 30, 2012  

    A newly published study renews an old debate about the age of the Grand Canyon, positing a possibility that the geographical formation could be tens of millions of years older than current wisdom suggests, dating back to the time of dinosaurs. Margaret Warner talks to science correspondent Miles O’Brien about its significance. Continue reading