Video By NASA Assigns Pitches To Stars & Galaxies To Give Us An Idea Of What Space Could Sound Like
NASA¡¯s Hubble Space Telescope often brings netizens stunning images of space that help us understand what lies beyond our earth a little better.
In space, no one can hear a thing, that¡¯s because sound doesn¡¯t move through vacuum.
Now, NASA¡¯s Hubble Space Telescope is allowing users on social media to experience stars and galaxies through senses other than just sight.
NASA
This clip was shared on NASA¡¯s Hubble Space Telescope¡¯s official Instagram account on October 10.
The caption shared alongside the post details what it shows, and in this case, what it plays.
'Hubble brings us stunning cosmic sights, but images can be experienced through other senses as well! Though there¡¯s no sound in space, assigning pitches to stars and galaxies in this galaxy cluster image provides a new way to conceptualize its data', it says.
The text further reads, 'The frequency of sound changes from the bottom to the top of the image, ranging from 30 to 1,000 hertz. Astronomical objects near the bottom of the image produce lower notes, while those near the top produce higher ones'.
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Back in 2013, Scientists devised an audio recreation of the Big Bang - in high fidelity - that started our universe nearly 14 billion years ago.
Armed with more sophisticated data from a satellite mission observing the cosmic microwave background - a faint glow in the universe that acts as sort of a fossilized fingerprint of the Big Bang - Cramer produced new recordings that fill in higher frequencies to create a fuller and richer sound.
The sound files run from 20 seconds to a little longer than 8 minutes.
The effect is similar to what seismologists describe as a magnitude 9 earthquake causing the entire planet to actually ring. In this case, however, the ringing covered the entire universe - before it grew to such gargantuan proportions.
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Sound waves travel through the air (or interstellar gas) as oscillations in pressure. When you compress a gas, it gets hotter - on a large scale, that¡¯s actually how stars are formed - and when it expands, it cools.
The sound waves traveling though the early universe caused faint variations in pressure in the gaseous medium, which in turn left faint variations in temperature etched into the cosmic microwave background. Using those temperature variations, University of Washington physicist John G. Cramer managed to reconstruct the sounds of the expanding universe.
All Inputs: PTI
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