the system will most likely evolve into a compact elliptical galaxy. More information: Daya Nidhi Chhatkuli et al, SDSS J134313.15+364457.5: Forming Compact Elliptical through the Merger ...

two distant galaxies overlapping each other. An elliptical galaxy and a spiral galaxy appear as one celestial body as a result of the effects of mass on spacetime, the fabric of the universe.