For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the need for artificially manufactured metamaterials. Scientists have ...

When the moon is completely enveloped by the Earth's shadow, yet glows with a mysterious dark red light—this astronomical ...

Monochrome rainbows are simply rainbows that occur in the same manner outlined above, but when the light refracted by the water droplets is predominantly red from a rising or setting sun.

Astronaut captures stunning lunar video that looks like a mirage in space from the International Space Station.