New Ways to Catch Rays

MIT’s Seth Lloyd, a pioneer of quantum computing, explains its applications and revolutionary potential.

MIT’s Marvin Minsky, one of the fathers of AI, expounds on the current state of the field and hopes for its future.

Three artificial-intelligence experts, including the leader of the Watson team, discuss the supercomputer’s prospects.

The head of the AI team that programmed the computer "Watson" to compete on Jeopardy! answers questions.

Should the U.S. be upgrading now to a "smart" electric grid? An energy expert insists there's no time to lose.

Art experts investigate whether a portrait sold for about $20,000 in 1998 is actually a lost Leonardo worth millions.

Watch a rare interview with the late Apple visionary, conducted in 1990, and see how remarkably prescient he was.

Visitors to the newly opened 9/11 memorial share their impressions.

Developer Larry Silverstein explains what's different about the new 7 World Trade Center.

Visit the factory where the 9/11 Memorial plaques are made.

Explore a panoramic image of the control room at the Pilgrim Nuclear Power Station's training simulator.

Explore what holds atoms together to form the myriad chemical substances found in our world.

Think you know your stuff? Identify 10 mystery materials from a set of clues.

See the materials and technologies that go into a smartphone as well as their environmental impact.

Bacteria help us in all kinds of ways, from fermenting foods to aiding medicine, cleaning oil spills to mining minerals.

Using a new wireless charging system, plug-in electric cars may be able to shed their power cables entirely.

Developing clean energy technologies makes sense not only environmentally but economically, Nobelist Steven Chu argues.

Are workers at U.S. nuclear power plants prepared to deal with earthquakes, tsunamis, and other disasters?

Nanomaterials are used in consumer goods from cell phones to sunscreen. But how safe are they?

Hear from Greg Hall, the drilling expert whose team reached 33 Chilean miners trapped more than 2,000 feet underground.