A new cloud seeding project in Grand County is testing a very different approach — one that uses electricity instead of chemicals.

NASA compares the universe's biggest black holes with "each other and to our solar system," in this Goddard Space Flight Center animation. Credit: NASA's Goddard Space Flight Center Conceptual Image L ...

Explore the Solar System in a way that transcends the average science project. This video showcases the relative sizes of the ...

The company is seeking F.C.C. approval to test an idea to reflect sunlight to Earth at night, possibly powering solar panels. Critics say it could be bad for people and wildlife.