SININF_220911_178
Existing comment: GRAVITY WAVES
More than a thousand million years ago
Before dinosaurs roamed the Earth
A ripple in space spread through the universe
Traveling at the speed of light
It had covered 95 percent of its journey to Earth
When the dinosaurs became extinct.
Spreading in all directions, getting weaker all the time
That ripple arrived at Earth
For a fraction of a second it passed through us all
We were stretched in one direction and squashed in the other And then the reverse
Like wobbling jelly.
You did not notice and neither did I
But some scientists detected
That stretching and squashing which
Contracted and expanded four kilometer long laser beams By less than a hundred-millionth
The width of an atom.
Such a tsunami in space-time
Caused by two black holes
Spiraling around and crashing into each other
The energy emitted momentarily
More than that of all the stars
In all the galaxies in the Universe.
Gravity waves - ripples in space-time
From the most cataclysmic events
Since the Big Bang appeared from nowhere
13.7 thousand million years ago
Still now they travel far past the Earth
Going to shake up other planets.
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