In the search for extraterrestrial life, researchers have hinted at the idea that advanced alien civilizations may be ...

Interstellar comet 3I/ATLAS has gone from obscure visitor to front‑page mystery, as a cascade of new images reveals behavior ...

NASA's Europa Clipper spacecraft has captured ultraviolet images of interstellar comet 3I/ATLAS, revealing hidden chemical ...

NASA's Europa Clipper and the James Webb Space Telescope have revealed the chemical secrets of interstellar comet 3I/ATLAS, ...

A dark, sharply defined opening in the Sun’s outer atmosphere has grown at an unusually fast pace, doubling in size in ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

Abstract: This article is concerned with the design of the distributed prescribed-time unknown input observer (DPTUIO) for a class of linear time-invariant systems, which we refer to as the target ...

The UFO reporting centre CENAP located in western Germany this year recorded more sightings by puzzled citizens than ever ...

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an ...

Abstract: State estimation in the presence of unknown inputs remains a fundamental challenge in control and monitoring applications. Traditional unknown-input observer (UIO) relies on explicit system ...