I am sure you are getting your March Madness Brackets set up.
Check out the most accurate to date determination of how much our home galaxy "weighs", or more precisely, how much mass does it contain.
|Center of Milky Way Galaxy|
Taken Underway on Azamara Quest
Pretty amazing story and result.
Most of our galaxy's mass is in the form of dark matter - something we can detect by its gravitational influence but cannot see.
Sky Guy in VA