Last month, we star-hopped around the constellation Leo and explored some of the Lion’s most prominent galaxies. This time, we test our galaxy-hunting skills with a plunge into the heart of the Virgo galaxy cluster, some 55 million light-years away. If you consult a star atlas, you’ll see that this part of the sky contains an insane number of galaxies — hundreds of them! How can we possibly find our way through this galactic clutter?Astronomy magazine subscribers can read the full column for free. Just make sure you're registered with the website.