Environmental groups are cheering: Tesla unveiled its newest fleet of electric vehicles this weekend, and California recently tightened its emissions standards. I was once enthusiastic about electric cars, too – as a solution to our environmental and energy challenges. I was wrong.
In the developing world, where land-intensive wind turbines are being rapidly constructed, wind power has often turned clean energy into dirty business.
UC Berkeley's plan, similar to tuition caps at elite private institutions, is the first such initiative at a public university. It will cap costs at 15 percent of household income for families earning between $80,000 and $140,000.
Alexander Graham Bell went on to invent the telephone, but before he did that he experimented with recording devices. The old disks were considered unplayable until new technology gave scientists the chance to listen to the recordings for the first time in 130 years.
Scientists hit "rewind" to discover how white dwarfs play a role in the evolution of a supernova.
Black holes 10 billion times the sun's mass have been found. The discovery could help write the history of galaxy formation and evolution over the universe's 13.7 billion-year history.