In a new study published April 23 on arXiv.org, Spanish astronomers have reported on an extreme blazar known as 2WHSP J073326.7+515354. Results of the research reveal the distance to this source and provide essential information about the stellar population of its host galaxy.
Source:
https://phys.org/news/2020-05-extreme-blazar-2whsp-j0733267515354.html