Solar panels can save money on electric bills, but a solar panel system requires a steep upfront investment — $30,000 for the average system including installation ...

But given that lunar spacecraft are solar-powered, how do they survive when they're cut off from the sun? For NASA's Lunar Reconnaissance Orbiter (LRO), which has been orbiting the moon since 2009 ...

I got mine for around $5. You also need some cheap solar lights, and you can get these at the Dollar Store for just a few dollars for the set. Aside from that, just a few basic craft supplies, and you ...

You also will want to give some of these 20 solar light repurposing ideas a try. Looking for other ways to spruce up your lawn and garden with easy DIY projects? Here are 30 whimsical garden ...

"These objects really could be anywhere in the solar system at any given time." One million alien visitors from another star system could already be lurking in the solar system. We aren't talking ...

Our solar system passed through a vast wave of gas and dust around 14 million years ago, dimming Earth’s view of the night sky. The wave may even have left traces in our planet’s geological ...

Light gases like helium hung around in the gas-and-dust nebula that formed the solar system for only a few million years. "It's very much debated how long it took the Earth to form," Olson said.

Workers install new solar ... Preschool on Monday, October 25, where they were attached to a network of frames and connecting wires. By midafternoon, when the work was complete, and the system ...