... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... Chandra data suggest giant collision triggered т??radio phoenixт?? ... X-rays from Chandra are in pink, and radio data from the VLA are colored green. ... The Chandra data show hot gas in the clusters, which seems to have been disturbed during the same collision that caused the reignition of radio emission in the system. ... Only registered members of Astronomy.com are allowed to comment on this...