It doesn’t take a stellar imagination to figure out the main downside of solar power. For years, the question of how to store the energy generated when the sun is shining for use at night has prevented solar power from becoming a viable alternative energy source. However, a new breakthrough may have overcome that storage problem, opening the door for solar energy on a grand scale.

Like analog TV and Marshall Tucker fans, solar power is a holdover from the Carter administration. Yet, for modern businesses like Google and General Motors, it's a promising alternative energy source. So far, "promising" is as far as it's gotten: the density in data centers and in the typical office complex -- lots of demand in a small area -- turns solar arrays into a pipe dream. At Google HQ, for example, nearly every rooftop is covered with solar panels, and they have plans for more coverage, but the array can only provide for about 30 percent of peak power usage.

When I was eight years old, my uncle told me that I’d get a solar-powered car for my sixteenth birthday – and that it would be affordable. When I turned 16 in 2002, though, solar power was still inefficient and expensive, and I landed a bike instead. It's taken impossibly high fuel costs, global warming, and some serious engineering developments, but six years later, solar power is finally becoming a viable alternative to oil.

Few would begrudge an environmental impact study in advance of new power plant construction, least of all proponents of alternative energy. But with the Bureau of Land Management's recent decision to put a freeze on any new solar projects on the land it oversees in order to study the potential environmental effects, those same proponents are now looking skeptically at the federal government.

Back to the Future II was a bit of a disappointment in the face of the original. Granted, it was hamstrung by the throw-away ending of the first, but it did have that brilliant opening sequence with the hoverboards. How much did you want a hoverboard after seeing that? Not to mention, the computerized, self-drying jacket Marty puts on to blend in. The stuff of fantasy, right? At least for the latter, not for much longer.

One of the problems plaguing solar cells is their inability to absorb all of the light they receive. Currently, the bluish anti-reflective coating you see on most cells is 60 or 65 percent efficient, meaning nearly a third of the light is bounced back into the sky. That's because the coating is only able to absorb a narrow range of wavelengths from the sun's rays. Now, however, researchers at the University of Florida and Portland State University think they may have found a better way and their inspiration comes from an unlikely source: moth eyes.