The galaxy belongs to a recently discovered, rare and unusual class of stellar systems known as ultracompact dwarfs.
The fireworks are taking place about 350 million light-years away.
A fundamental equation has cracked the evolution of how planets swarm around the sun.
When massive stars come to the end of their life cycles, they self-destruct in a cataclysmic final explosion.
Rosette Nebulae are red, O-type stars are blue...
Dark matter could make up around 80 percent of the mass in the universe.
The weird clouds could come from another galaxy.
The galaxies had been invisible to every other instrument that ever looked at them.