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Apr 25, 2016 at 5:59 history closed user10851
AccidentalFourierTransform
ACuriousMind
John Rennie
CuriousOne
Duplicate of How do people calculate proportions of dark matter, dark energy and baryonic matter of the universe?
Apr 24, 2016 at 9:06 comment added sanyam sharma Well observable universe..I will post earth in a separate ques.
Apr 24, 2016 at 8:57 comment added AccidentalFourierTransform Possible duplicate of How do people calculate proportions of dark matter, dark energy and baryonic matter of the universe?
Apr 24, 2016 at 8:45 review Close votes
Apr 25, 2016 at 5:59
Apr 24, 2016 at 6:05 comment added John Rennie Can you clarify what you are asking? Are you asking how we determine the mass of the Earth, or how we determine the masses of all celestial bodies, or how we estimate the mass of the observable universe. These are very different questions.
Apr 24, 2016 at 4:47 history asked sanyam sharma CC BY-SA 3.0