Intergalactic light from orphaned stars studied for 1st time

Astronomers have for the first time studied the elusive faint glow emanated by stars that have been ripped from their homes and now exist as cosmic orphans between galaxies.

The team used a new technique to study this so-called “intra-group light” and tell the story of how displaced stars were woven through a group of galaxies. Because these galaxies are seen as they were 2.5 billion years ago, the research could make a valuable contribution to our understanding of cosmic evolution.