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 ...

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 ...

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.

If you spotted a bright white light trail in the western Colorado sky on Friday, Jan. 2, we regret to inform it wasn’t aliens ...

Abstract: In this paper, we apply the recently developed generalized parameter estimation-based observer design technique for state-affine systems to the practically important case of linear ...

Within minutes, activists surround the agents; blowing whistles, shouting down law enforcement and gathering vital bits of information that could help document the suspect and the agents. Sometimes ...