WorldStupefied astronomers on Wednesday unveiled the first and only known galaxy without dark matter, the invisible and poorly-understood substance thought to make up a quarter of the Universe. "For a galaxy this size, it should have 30 times as much dark matter as regular matter," he told AFP by phone. Dark matter and dark energy comprise the rest, and scientists have yet to directly observe either. A galaxy entirely bereft of dark matter raises vexing questions that, so far, have stumped astronomers. Whatever the explanation, a galaxy with no dark matter poses an ironic challenge to astronomers who question the very existence of the substances, according to the study.

Source: Sunday Times March 28, 2018 21:11 UTC