http://www.sciencemag.org/news/2019/01/astronomers-still-cant-decipher-cow-mysterious-explosion-deep-space

AT2018cow, the right-hand of two bright spots down and right of the galactic center, is confounding astronomers.

SEATTLE, WASHINGTON--An unusually bright glow in the sky that appeared suddenly last June has got astronomers in a frenzy. After months of study, they still aren’t sure what the object—officially called  AT2018cow, but universally referred to as the ‘Cow”--is. But scientists have some ideas, which they offered here today at the American Astronomical Society meeting. Whatever it is, says astronomer Liliana Rivera Sandoval of Texas Tech University in Lubbock, “it’s super weird.”