Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

By Kimberly Palmer, NerdWallet Investing in a few home maintenance projects now could help reduce your costs when the cold weather hits. Not only can you trim your heating expenses, but you can also ...

First, take a clean, damp cloth to gently wipe off loose debris or dirt sitting on the panel surface. Don’t oversaturate the ...

Scientists are trying to figure out how minerals connected to exoplanetary water would look to the James Webb Space Telescope ...

If your neighbor installs solar panels, you're more likely to too. This "social contagion" can spread further in religious ...

Sunrun, CleanChoice Energy and ShopSolar are Philadelphia’s top solar companies. Compare local reviews, energy services, equipment options and more.