solar energy: Quick Facts

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Last updated

Nov. 2, 2026

News •

New air purifier that is charged by sunlight and indoor LED lights protects users from pollutants and airborne diseases • Oct. 29, 2026, 6:24 PM ET (Earth.com)

An 'electron waiting room' helps blue titanium dioxide hold light energy longer • Oct. 26, 2026, 10:20 AM ET (Phys.org)

Photos and Videos

Rows of solar panels angled toward the sun, with bright sunlight reflecting off the panels and grassy ground beneath.

Reflection and absorption of solar energy

Diagram of a tree leaf illustrating photosynthesis, with arrows showing sunlight, water, and carbon dioxide entering the leaf and sugars and oxygen being produced. A person is shown beside the tree to demonstrate the exchange of oxygen and carbon dioxide between plants and animals.

World map color-coded to show photovoltaic solar power potential, with higher potential indicated by warmer colors such as orange and red, and lower potential by cooler colors such as green and blue. Regions with the highest solar energy potential include parts of western North America, northern and southern Africa, the Middle East, Australia, and parts of South America, while areas with lower potential are found in northern Europe, Russia, and parts of Canada. The map includes a scale for daily

A metal tea kettle sits on a large reflective solar cooker outdoors in a Himalayan village in Nepal, with stone walls and a building visible in the background.

Concentrated solar-power plant

Solar reflector

The Transition to Renewable Energy Explained by Phil the Fixer

Exploring solar-powered artificial wings

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Topics

Solar constant wind energy The Science Behind Project Hail Mary smart grid energy flow solar power space-based solar power solar wind power satellite Solar radiation energy combustion nuclear power geothermal energy wind power biofuel steam power hydroelectric power biogas electric power Solar eclipse

Key People

Watch the “Gossamer Albatross” the first human-powered plane crossing the English Channel in 1979

Paul Beattie MacCready

American aeronautical engineer

Telkes, Mária

Mária Telkes

American physical chemist and biophysicist

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

All About Astronomy

James Watt as a young man, c1769. Scottish engineer and instrument maker. Invented the modern steam engine which became the main source of power in Britain's textile mills. His engine had a separate condenser in which steam from the cylinder; (see notes)

Weaponry, Energy, and Power Systems Quiz

Electric power lines against sunset (grid, power, wires, electrical, electricity)

Energy & Fossil Fuels