By Mary Halton
Science Reporter, BBC News
An unusually transparent galaxy about the size of the Milky Way is prompting new questions for astrophysicists.
The object, with the catchy moniker of NGC1052-DF2, appears to contain no dark matter.
If this turns out to be true, it may be the first galaxy of its kind – made up only of ordinary matter. Currently, dark matter is thought to be essential to the fabric of the Universe as we understand it.
The study is published in Nature.
Read the full article at BBC News.