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.

Sunglint occurs when sunlight reflects off the ocean at the same angle satellites observe it, producing mirror-like images while affecting ocean color measurements.

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have created a chip-scale device that can dynamically control the "handedness" of light as it passes ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

The "city killer" asteroid 2024 YR4 won't hit Earth or the moon when it whizzes by in 2032, the latest James Webb Space Telescope observations confirm.