Megamasers and Cosmology
![Megamasers and Cosmology](https://public.nrao.edu/wp-content/uploads/2020/04/nrao20df02_hubbleconstant_artimp_SD.jpg)
Artist’s conception illustrating a disk of water-bearing gas orbiting the supermassive black hole at the core of a distant galaxy. By observing maser emission from such disks, astronomers can use geometry to measure the distance to the galaxies, a key requirement for calculating the Hubble Constant.
Credit: S. Dagnello
Technical Details | |
---|---|
Telescope | HST |
Categories:
Cosmology
Part of Collections:
Image of the Week
Download Image
Have you reviewed our Media Use Policy?
Yes, continue