How solar energy got so cheap, and why it’s not everywhere (yet)

It's astonishing, but clean energy from the sun, solar energy, has become the cheapest way to generate electricity. It's even cheaper than coal. And yet it produces only three percent…

Read more »

Storing the Sun’s Energy in Liquid Could Change Solar Forever

  The sun puts out a lot of energy, more of it hits the earth in an hour than humankind could use in a year And we’re really not taking…

Read more »