Why hasn't Earth received any messages from extraterrestrials yet? Perhaps because we're already unwitting inhabitants in a so-called galactic zoo. This was one of the scenarios a group of ...

This new image mosaic is the first in a series of Hubble Legacy Field images. The team is working on the second set of images, totaling more than 5,200 Hubble exposures, in another area of the sky.

For what reason hasn’t Earth gotten any messages from extraterrestrials yet? Maybe on the grounds that we’re as of now accidental occupants in a purported galactic zoo. This was one of the situations ...