The fleeting glow of noctilucent clouds is once again making its appearance in Earth’s upper atmosphere, signaling the start ...

Astronomers with the Event Horizon Telescope have developed a new way to observe the radio sky at multiple frequencies, and ...

the sky is not always blue. And Rayleigh scattering also explains why the sky tends to be reddish when the Sun is close to the horizon – at sunrise and sunset.When the Sun is near the horizon ...

But because we can't see violet very well, the sky appears blue. Scattering also explains the colors of the sunrise and sunset, Ackerman says. “Because the sun is low on the horizon, sunlight ...

What a blue sky!” so says my husband as we pause in our garden prep work. “Looks pretty grey to me,” I counter, looking ...

Mark your calendars for a starry smile you won't want to miss Getty If you’re feeling blue, just look up at the ... celestial bodies line up in the sky, appearing in close proximity to each ...

A serendipitous solar outburst let scientists point the robot’s cameras toward the Red Planet’s sky to spot a feature shared ...