When we hold a neon tube in our hands or see a neon sign we are seeing our cosmic selves illuminated,” Matuszewicz said. “… ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old ...

Abstract: Cloud detection is one of the important links in high-resolution remote sensing image processing. Cloud detection methods can be mainly divided into the following three categories: threshold ...