Discover the universe! Each day a different image or photograph of our universe is featured, along with a brief explanation written by an astronomer.
January 15 is 2022.
See the explanation. Clicking on the picture will bring you to the download page.
The highest resolution version is available.
Galileo's world.
The image is from NASA, JPL-Caltech, SETI Institute and CynthiaPhillips.
The Galileo mission discovered evidence that the moon's icy surface hides a deep, global ocean, and recorded stunning views of it. Galileo's image data has been remastered here, with improved calibrations to produce a color image approximating what the human eye might see. There is a hint at the subsurface liquid water in the long curving fractures of Europa.
Scientists confirm the water-vapor-on-europa. The moon is flexing around Jupiter, which is providing the energy to keep the ocean liquid. It is possible that even in the absence of sunlight, the process could provide the energy to support life, making it one of the best places to look for life beyond Earth. What kind of life could live in a dark ocean? Consider planet Earth's own extreme shrimp.
Tomorrow is a cloudy day.
Robert Nemiroff is an author and Jerry Bonnell is an editor.
Phillip Newman has specific rights.
NASA has a privacy policy on the internet.
There is a service at NASA.
& Michigan Tech. U.
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Discover the universe! Each day a different image or photograph of our universe is featured, along with a brief explanation written by an astronomer.
January 16 is 2022.
The featured image shows a cloud retreating.
At sunset in Canada. The cloud is large.
There are mammatus clouds at the far end.
You can see the explanation for more detailed information.
A storm at sunset.
Alan Dyer is the author of The Amazing Sky.
What type of cloud is that? The thundercloud is somewhat unusual as it contains a mammatus cloud on the near end and also produces falling rain on the far end. The cloud is moving to the east as the sun sets behind the camera in southern Canada. In the featured image, sunset colors cross the sky to give the cloud a striking orange and pink hue. The sky is blue. There is a gibbous moon visible on the far right.
The picture is of space dust.
Robert Nemiroff is an author and Jerry Bonnell is an editor.
Phillip Newman has specific rights.
NASA has a privacy policy on the internet.
There is a service at NASA.
& Michigan Tech. U.
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