Solar heating uses thermal energy from the sun to heat fluids or spaces. Active heating uses circulating pumps, while passive heating uses the thermosiphon effect. Solar heating offers low-cost ...

Looking for the most efficient HVAC system? Check out our guide, which details the different types of systems and the best for different homes and climates.

Read more: 12 Smart Gadgets You Didn't Know Existed There are two main types of solar heating systems: active and passive. Active systems are more complex, using pumps, temperature sensors, ...

You can classify solar water heaters into two systems: active and passive. Active systems use circulating pumps and controls to transfer heat from the collector panels to a storage tank ...

A solar water heater is an efficient way to get hot water in your home and lower your bills. Learn how the equipment works and how much it costs in our guide.

The U.K. based aerospace company, Space Solar, plans to launch its space-based solar power plant by 2030 to deliver clean ...

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space ...

Gordon Scott has been an active investor and technical analyst ... Of all the clean energy alternatives, solar has arguably been the most expensive though prices have been declining.

A simple example is solar panels, which use the sun's radiation to generate ... moderate this thrust to serve their purposes ...

People in the northernmost states may have a chance to see auroras glowing in the northern sky tonight.

XI’AN, China—This should be a shining moment for Longi, one of the biggest makers of solar-power equipment in the world. Longi and a few other Chinese companies dominate the solar business ...

On 12 November 2014, after a 10-year journey through the solar system and over 500 million kilometers from home, Rosetta's lander Philae made space exploration history by touching down on a comet for ...