Farmers recover from heavy rains that threatened to cause high food and ethanol prices.
The next U.S. president should follow Massachusetts's lead.
A startup reports progress on a battery that stores more energy than lithium-ion ones.
A novel low-temperature electrolyte could make solid-oxide fuel cells more practical.
Researchers have found a cheap and easy way to store the energy made by solar power.
A large-scale tidal-power unit has started up in Northern Ireland.
Replacing sapphire with silicon could lead to more-affordable LEDs.
A catalytic process could improve thermochemical routes to ethanol.
An advance makes the conversion of heat to electricity practical.
NASA prepares to test a satellite that can be propelled by light particles from the sun.