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The second minor planet it photographed, 243 Ida, was unexpectedly discovered to have a moon. The tiny moon, Dactyl, is only about 1.6 kilometers across and seen as a small dot on the right of the sharpened featured image. In contrast, the potato-shaped Ida is much larger, measuring about 60 kilometers long and 25 km wide.
A different astronomy and space science related image is featured each day, along with a brief explanation.
The picture was taken last month in Syracuse, Sicily, Italy, in the direction opposite the Sun . On the far left is the pre-sunset upper sky. Toward the right, prominent bands include the Belt of Venus, the Blue Band, the Horizon Band, and the Red Band. As the dark shadow of the Earth rises, the colors in these bands are caused by direct ...
The famous Rosette Nebula is really located on the lower right and connected to the other nebulas by irregular filaments. Because the featured image of Rosetta's field is so wide and deep, it seems to contain other flowers. Designated NGC 2237, the center of the Rosette nebula is populated by the bright blue stars of open cluster NGC 2244 ...
One contender is LDN 43, which bears an astonishing resemblance to a vast cosmic bat flying amongst the stars on a dark Halloween night. Located about 1400 light years away in the constellation Ophiuchus, this molecular cloud is dense enough to block light not only from background stars, but from wisps of gas lit up by the nearby reflection ...
Discover the universe like never before with APOD, your personal window into the mysteries of space and astronomy. APOD is your gateway to the NASA Astronomy Picture of the Day (APOD) and much more, offering a rich and immersive experience that brings the cosmos to your fingertips. Key Features: 1. Daily Astronomy Marvel: Every day, APOD delivers a breathtaking astronomy picture, videos and ...
Explanation: To see the feathered serpent descend the Mayan pyramid requires exquisite timing. You must visit El Castillo -- in Mexico 's Yucatán Peninsula -- near an equinox. Then, during the late afternoon if the sky is clear, the pyramid 's own shadows create triangles that merge into the famous illusion of a slithering viper.
