Hubblecast 117 Light: Hubble & Gaia weigh the Milky Way

Measurements from the NASA/ESA Hubble Space Telescope and the ESA Gaia mission have been combined to improve he estimate of the mass of our home galaxy the Milky Way: 1.5 trillion solar masses. You can subscribe to the Hubblecasts in iTunes, receive future episodes on YouTube or follow us on Vimeo.   Many other Hubblecast episodes are also available.   Find out how to view and contribute subtitles for the Hubblecast in multiple languages, or translate this video on YouTube. More information and do