No, the
gravitational singularity was supposedly what existed just prior to the big bang (and what black holes are). Whether the singularity ever actually truely existed, as suggested by classic "big bang" theory has been cast into serious doubt recently by developments in String Theory.
The crash I was referring to was far, far later (remember, the Earth is a bit older than 4.5 Billion years). Soon after the formation of the earth, there was an impact of a large celestial body (estimated to have been roughly the size of Mars) which "broke off" a huge cloud of rock and dust. This collision gave the earth it's current "spin" and also created the moon.
The singularity you referred to, if it ever existed, was sometime prior to
13.7 billion years ago.
World != UniverseOh, and...
If a singularity occurs in a universe of zero mass and infinite energy, does it make a sound?
No, of course not.
Nothing emmitted from within the singularity could escape the
Event Horizon which would form around it. Even if there was what we would call matter inside the Event Horizon (which is itself unlikely) through which "sound" could be transmitted, it could never escape and radiate (by definition the singularity has infinite gravity, and therefore warps Space-Time infinitely onto itself).
Nothing can pass through the Event Horizon, not even light.
Interestingly, the singularity actually doesn't have zero mass in theory. It has zero
size (no length, width, or height) but it has infinite mass (and therefore infinite gravitational "pull" as it warps space-time into a spherical event horizon).
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