The big picture of the universe reveals the family tree of galaxies
https://theconversation.com/...big-picture-of-the-universe-reveals-the-family-tree-of-galaxies-65040
A new photo album made from hundreds of images of more than 70,000 galaxies represents one of the most detailed
galaxy studies ever compiled, spanning a period of 12 billion years. The album, which my colleagues and I compiled,
allows us to track the family tree of galaxies over more than 90% of the age of the universe.
We used the 6.5-metre Magellan Baade Telescope and FourStar infrared camera to snap these images over 45 nights.
Taking inspiration from the camera, we named the study the FourStar Galaxy Evolution Survey, or ZFOURGE for short.