The 22° Halo is a striking optical phenomenon that manifests as a circular ring of light around the sun or moon. This halo is formed by the refraction of light through ice crystals in high ...

Contrails across the sky create a strange shadow on the ground that puzzled an airplane passenger seeing them from the airplane window.

Earth crosses through Saturn’s “ring plane,” making the gas giant’s most iconic feature become nearly invisible ...

The strange sight is actually two galaxies, with the light of the second warped around the one at the front as a result of ...

Believe it or not, we've seen a few optical illusions in space over the year. Well, we haven't seen them – the Hubble ...

as well as Imperial College London and University College London suggest leveraging an optical phenomenon called chromatic aberration—that usually degrades image quality—to produce suitable ...

It's not every day that a prominent feature of our solar system disappears, but that's precisely what will happen with Saturn ...

Some optical phenomena depend on the quantum nature of light and the interaction of light with matter. Geometric optics and physical optics are models that describe phenomena while ignoring properties ...

Scientists suggest leveraging an optical phenomenon called chromatic aberration -- that usually degrades image quality -- to produce suitable images with standard microscopes. Quantitative phase ...