Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path. One kept a magnetic field against the odds. Another trapped so much heat ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

Overview Energy, a startup attempting to develop a space-based solar power system, plans to demonstrate its technology from a satellite in low Earth orbit in 2028. The Ashburn, Virginia-based company, ...

Nanotechnology enables the use of materials with unique optical, electrical, and thermal properties. These materials can be engineered to absorb sunlight more efficiently, reduce energy loss, and ...