Rainbow

 

Rainbow Airglow over the Azores


Anticrepuscular Rays Converge Opposite the Sun

Is there ever anything interesting to see in the direction opposite the Sun?

Astronomy Picture of the Day: Extraordinary Solar Halos

Welcome to the December Solstice, the first day of winter in planet Earth's northern hemisphere and summer in the south.

Astronomy Picture of the Day: A Rainbow Geminid Meteor

Meteors can be colorful. While the human eye usually cannot discern many colors, cameras often can.

Astronomy Picture of the Day: Supernumerary Rainbows over New Jersey

Yes, but can your rainbow do this?

Astronomy Picture of the Day: Ice Halos at Yellowknife

You've probably seen a circle around the Sun before. More common than rainbows, ice halos, like a 22 degree circular halo for example, can be easy to spot, especially if you can shade your eyes from direct sunlight.

Astronomy Picture of the Day: Red Cloudbow over Delaware

What kind of rainbow is this? In this case, no rain was involved -- what is pictured is actually a red cloudbow.

Astronomy Picture of the Day: Colorful Airglow Bands Surround Milky Way

Why would the sky glow like a giant repeating rainbow?

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