Answer: Universe
Mass of ordinary matter
The mass of the observable universe is often quoted as 1050 tonnes or 1053 kg. In this context, mass refers to ordinary matter and includes the interstellar medium (ISM) and the intergalactic medium (IGM). However, it excludes dark matter and dark energy.
Density (of total energy): 9.9×10−27 kg/m3 ...
Mass (ordinary matter): 1.5×1053 kg
Contents: Ordinary (baryonic) matter (4.9%); D...
Volume: 3.566×1080 m3
Explanation: Galaxy
around 1.5 trillion solar masses
Their answer: The galaxy weighs around 1.5 trillion solar masses. This number helps put in perspective how very small we are. Take, for instance, where stars in the Milky Way fit in.
