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A red rainbow has a surreal beauty, but its explanation is fairly ordinary. It's created via the same physics that makes a sunset or sunrise looks red.
An EarthSky Community member caught an unusual red rainbow arching high into the sky.
Jüri Voit captured this image on July 6 in Kuusalu, Estonia. It looks like a special kind of rainbow, called a red rainbow.
It's rare to see a red rainbow. Sky conditions have to be just right, and the timing has to be right. If you do see one, you'll never forget it.
Insect wings that look transparent and drab to our eyes apparently look more like peacock feathers to other insects.
For the 1st time, astronomers say they have detected a glory on an exoplanet. Glories are a natural phenomenon, but until now seen only on Earth and Venus.
A fogbow is like a white rainbow. It's made by much the same process as rainbows but with a fog's smaller water droplets instead of larger raindrops.
They look like iridescent contrails. But, are they? We asked Les Cowley, an atmospheric optics expert, who gave a different opinion.
Clouds with rainbow colors are called iridescent clouds. The names comes from Iris, the Greek personification of the rainbow. Photos here.
The closest planet to the sun, Mercury, has a tail much like a comet. See Mercury's sodium tail in photographs through special filters and learn more about it.
Rainbows have a curved shape because they're made from light reflected after hitting spherical raindrops. Learn more about rainbows here.
NASA's Curiosity rover has captured our 1st clear image of crepuscular rays or sunrays on Mars. The rover also caught cloud iridescence on Mars.
Researchers from the University of Hawaii found that climate change will bring more rainbows to higher latitudes and higher elevations.
Take a look at Pluto in this rich false-color image. The colors help to highlight the differences in the dwarf planet's terrain.
Predicting solar storms isn't easy. We're still a long way from forecasting space weather events days in advance. But we're getting closer.
Whales are magnificent creatures and ... whales make rainbows. Photos and video here.
One EarthSky reader captured a photo of a rainbow patch hanging below a cloud, looking almost like a sheet of rain. What was it?
Redshifts reveal how an object is moving in space, showing otherwise-invisible planets and the movements of galaxies, and the beginnings of our universe.
There are many colored arcs in the sky. This photographer captured one commonly seen in summer, when the sun is high in the sky.
It's what's called a reflection rainbow, which can be caused by sunlight beaming upward after reflecting from wet sand or calm water, in this case the water of Puget Sound.