Science Writer’s Workshop: Hubble Deep Field

Hubble and Keck Team Up to Find the Farthest Known Galaxy

Galaxy cluster Abell 2218 is acting as a powerful lens, magnifying all galaxies lying behind the cluster core. The lensed galaxies are all stretched along the cluster's center and some of them are multiply imaged. Those multiple images usually appear as a pair of images with a...

The First Galaxies in the Universe

Artist's illustration of what one of the first galaxies in the universe may have looked like, 750 million years after the Big Bang.