Dr. Marc Siegar

Freshly published by the Royal Astronomical Society, UMD's Dr Marc Seigal is putting his discovery into layman's terms.

While you might never need to know the mass of a black hole, it's still good to know that, thanks to Seigal and his research team in Australia, you no longer need spectroscopy and  a lot of expensive telescope time.

In fact, the little schematic shown here and an image of a galaxy is all you need.