Happy #groundhogday!
Punxsutawney Phil saw his shadow this morning... and from up in space, Hubble can see shadows too!
This image shows three of Jupiter’s dozens of moons – and two of their shadows – moving across the planet in 2015. The three moons are called Callisto, Europa, and Io and each is special in its own way.
Europa (farthest to the left) is one of the most promising places in our solar system to find present-day environments suitable for some form of life beyond Earth. The second moon from the left is called Callisto and is the gas giant’s second largest moon. Europa's shadow is toward the left side of the image and Callisto's shadow to the right.
Last but not least, in the upper right is Io, the most volcanically active world in the solar system.
#nasa #hubble #groundhog #jupiter #winter #spring #moon #planet #space #universe
