Astronomers discovered a runaway black hole hurtling through space at 3.7 million miles per hour.

The black hole is creating a trail of new stars behind it, which are forming in its wake.

The trail of new stars is 100,000 light-years long and stretches across a dwarf galaxy.

The black hole was likely ejected from its original galaxy due to a merger with another galaxy.

 The black hole is 20 times the mass of our sun and is still growing.

It is thought that the black hole will continue to create new stars for millions of years.

The discovery sheds light on the relationship between black holes and star formation.

It also raises questions about how common runaway black holes are in the universe.

The research was conducted using data from the Hubble Space Telescope and ground-based observatories.