Cluster Merger-Driven Shock Fronts Can Resurrect ‘Red and Dead’ Galaxies

‘Red and dead’ galaxies that stopped forming stars in the distant past can sometimes come back to life, find two studies published in the journal Monthly Notices of the Royal Astronomical Society. According to structural formation hierarchy of the Universe, stars form galaxies and galaxies form clusters. Gigantic galaxy clusters can merge, forming the largest [...] —> Read More