About two years after a solar maximum, the Pacific experiences conditions similar to El Nino the opposite of La Nina.

VOA: special.2009.09.29

The latest version of the box uses mobile phone technology, and solar panels in case the electrical power fails.

VOA: special.2009.10.12

An object in the solar system could be identified if it appeared to move from its place in the earlier photograph.

VOA: special.2010.07.11

Gerald Meehl says a better understanding of solar activity and its influence on weather may help researchers predict long-term weather conditions.

VOA: special.2009.09.29

They found the highest levels of solar activity cause small, but far-reaching effects on weather systems around the world.

VOA: special.2009.09.29

In the nineteen sixties, Ray Davis Junior used the mine for his work showing the existence of solar neutrinos.

VOA: special.2009.07.21

"When solar panels supply both hot water and space heating, the goal of zero emissions begins to look achievable."

VOA: special.2009.03.25

He talked about ways that tribes could more easily develop clean energy such as solar power and wind energy.

VOA: special.2009.11.13

The study in Benin found that solar-powered pumps are effective in supplying water, especially during the long dry season.

VOA: special.2010.01.11

But last month,a computer programmer from Australia made an exciting discovery of an unusual event in Earth's solar system.

VOA: special.2009.08.25

In that event,astronomers were able to observe the icy comet long before it struck the solar system's biggest planet.

VOA: special.2009.08.25

Mars Day at the Smithsonian Air and Space Museum in Washington is a celebration of our solar system's most famous planet.

VOA: special.2010.07.28

The total energy reaching Earth from the sun rises and falls by just one tenth of one percent across this solar cycle.

VOA: special.2009.09.29

This most recent collision with Jupiter brought attention to how the huge planet's gravity affects our solar system.

VOA: special.2009.08.25

There is also something else you will need to make the solar water heater work -- the sun.

VOA: special.2009.04.20

So everything from creating solar hot-water systems on our rooftops to making our buildings much more energy efficient."

VOA: special.2011.07.08

"Most of the people who come along here didn't notice that we have solar panels around the fa?ade.

VOA: special.2009.10.27

The goal of the Stardust-NExT spacecraft is to gather scientific evidence about one of the solar system's most changeable objects -- comets.

VOA: special.2011.02.09

They thought it's just glass." In fact,the outer surface of the German entry was covered with solar panels.

VOA: special.2009.10.27

But with fewer solar panels, they fell behind the German team on the most important requirement: energy production.

VOA: special.2009.10.27

The answer: solar panels. Energy from the sun powers the satellite dishes and computers that link the areas with the world outside.

VOA: special.2009.02.16

The solar water heater described here is based on a design developed some years ago in Afghanistan.

VOA: special.2009.04.20

Some scientists have called Jupiter the protector of the inner planets and our own Earth -- from objects from the outer solar system.

VOA: special.2009.08.25

It had been the first time people moved beyond their small planet into the huge solar system.

VOA: special.2009.07.29

The solar-powered irrigation systems produced an average of nearly two metric tons of vegetables per month.

VOA: special.2010.01.11

It was the name given to permanent, cloudy areas in the sky outside our solar system.

VOA: special.2009.04.29

And how,she asks, will they handle additional costs such as electric charging, batteries and solar panels?

VOA: special.2009.05.11