Ecofriend

Eco Factor: Spacecraft to help scientists understand polar climate change will be powered by the pressure of sunlight. Solar Sailing, a dream for most space engineers can soon meet reality as researchers are planning a spacecraft that will be...

NASA is attempting to deploy and operate its first solar-sail powered craft NanoSail-D, made of extremely lightweight gossamer fabric designed to glide into space. It uses sunlight to propel vehicles through space, the way the wind pushes a sailboat..

Now, it's the turn for the earth to save itself from the scorches of the sun! It will soon get an umbrella to reduce its temperature -- by building a massive space sunshade! But, how?! A University of Arizona professor, Roger Angel, thinks this...