When comparing two objects, people either rely on internal memories of these objects or run their hands and eyes over them to directly perceive their similarity. The latter approach, a shortcut ...

Hubble and the James Webb Space Telescope operate in different wavelengths. That means that they can see different aspects of the same objects.

There's something unusual lurking out in the depths of space: Astronomers have discovered four faint objects that at radio wavelengths are highly circular and brighter along their edges. And they ...