Michio Kaku Unlocking Secrets of the Universe

Scientists use Hadron Collider to simulate Big Bang theory

Obamas expansion plan for drilling for oil and gas

Reducing Dependence on Foreign Energy

CBS News' Political Analyst John Dickerson spoke to Maggie Rodriguez about President Obama's expansion plan for drilling for oil and gas to reduce America's dependence on foreign energy.

Iron Ore Prices Rising on Short-Term Pacts

Biderman Sees Iron Ore Prices Rising on Short-Term Pacts

April 1 (Bloomberg) -- Raphael Biderman, an analyst at Banco Bradesco SA, and James Lennon, an analyst at Macquarie Group Ltd., talk with Bloomberg's Erik Schatzker about the outlook for iron ore prices after producers Vale SA and BHP Billiton Ltd. said they ended a 40-year system of setting annual prices and will sign short-term contracts with Asian steel mills. (Source: Bloomberg)