Dark matter shock: Mystery substance eludes scientists once more with this major discovery

To look for dwarf galaxies which lacked dark matter, the team looked for how fast hydrogen was moving around these cluster of stars. The higher the speed, the more mass a galaxy has.

They then estimated the mass of the hydrogen and added it to the mass of all the stars in the small galaxies to determine how much dark matter was there, or lack thereof.

In “normal” cases, just two percent of a galaxy is made up of non-dark matter.

However, the team found several “oddballs”, including one of the galaxies which was made up of 27 percent of non-dark matter.

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