Hurray! We've finally made it to Portland's first 7:00 PM sunset of 2025! The time is approaching for those beautiful, red ...

You can’t beat watching the sunrise or sunset and seeing the sky transform into an array of colours, from deep blue to ...

The Blue Ghost lander snapped images of the eclipse on March 14 as seen from the surface of the moon. Next, it'll observe the ...

Sahara dust colors the evening sky, glittering crystals shimmer in detail – This week, our gallery photographers once again show diversity.

The final act of the Blue Ghost lander's busy two weeks on the moon was to send back sunset shots featuring Earth and Venus.

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

Of course, 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 ...

Firefly's Blue Ghost witnessed Earth blocking out the Sun from its point of view on the Moon, while we experienced a lunar ...

Researchers from Kyushu University have developed a new numerical model to explain the behavior of sunlight under various ...

This is the same process that makes our sky appear blue by day or reddish-orange at sunset. Due to the expected red color, many refer to this phenomenon during a lunar eclipse as a "blood moon." ...