Gas prices have fallen to $3.72 since topping out at $3.98 a gallon in May. Plenty of supply and soft demand mean gas prices are likely to keep falling this summer – perhaps another 30 cents a gallon.
Five forms of new technology that can change the world: From the computer that beats humans on "Jeopardy!" to cellphone apps for African pick-and-hoe farmers, to satellites that spy on human rights abusers.
Japanese and US officials are proposing resin, a giant tarp, and even robots in efforts to slow the leak of radioactive material from Japan's damaged Fukushima Daiichi nuclear power plant.
Nobody expected that a tsunami would affect Japan's nuclear plants. And climate change will raise the possibility of such awful, unlikely happenings around the world.
Oil surges to its highest level since September 2008. Natural gas prices rise, too.
Mysterious plumes of white, black, and grey smoke have billowed out of the Fukushima I nuclear power plant, prompting speculation about the status of the devastated reactors.
Workers at Japan's stricken Fukushima nuclear power plant are still days – if not weeks – away from bringing the crisis under control. The reason: nuclear fuel rods remain dangerously hot well after reactors are shut down, and all cooling systems at Fukushima have failed.
IBM, General Electric and Microsoft lead the market lower. Dow falls more than 60 points initially.
Earthquake entrepreneur George Dickson hopes to change the way the world gets its earthquake warnings.
A Senate hearing on Thursday produced fireworks over light bulbs, as conservatives urged repeal of US energy-efficiency standards they see as anticonsumer and paternalistic.