A new way of seeing the Universe.

In the universe we do not know many things, one of them is its beginnings, which are the first 380,000 years after the Big Bang, this beginning is unknown, the initial moments in the creation of the universe, and that moment determined the rest of the origin of the universe and perhaps also determine your future.

Gravitational waves are disturbances of the fabric of space-time caused by very massive objects, the crests between the waves can be huge up to tens of light years, they are produced by events such as the collision of supermassive black holes that create powerful gravitational waves that vibrate the whole universe, what happens is that they reach us like soft waves of a very distant storm, but they make us vibrate, they make our planet and even our bodies vibrate, but on a scale of fractions of the size of a subatomic particle.

The most interesting thing is that the first of these gravitational waves originated not hundreds of thousands of years after the Big Bang, like the microwave background, nor thousands of years, nor months, but tiny fractions of seconds after the start of the Big Bang. Bang, so we could capture them and have a picture of what happened in that primordial moment.

But how have scientists done it to be able to try to capture these ancient gravitational waves, because if you need to measure something so big, you have to look for something very big, so what they did was measure the Tic Tac rhythm of more than 15 years. 60 pulsars of our galaxy.

The image you see is from the press conference and shows us the graph of the pulsars used, a pulsar or pulsating star is a neutron star that rotates very fast and is highly magnetized, emits radiation from its poles and the emission can be detect on earth as short and regular emission intervals are similar to lighthouses, but rotating much faster.

A pulsar can rotate hundreds of times per second, when a gravitational wave hits a pulsar it produces a slight stretching and shrinking of the fabric of space-time that exists between the Earth and the pulsar, that can be measured as a disturbance in the radio pulses that we capture from that pulsar.

It is a tiny alteration of one thousand millionths of a second but enough to be able to be measured, each measurement is a point on the map of gravitational waves and the more points we have, the more pulsar data is taken, the better we can trace a map of those gravitational waves.

Thanks to these 15 years of work, scientists have begun to build an image of the universe as an ocean of gravitational waves, most of which are the product of colossal supermassive black hole merger events, but there are also some of those gravitational waves that come from the At the very moment of the birth of the universe, this is just the beginning of a new way of seeing the cosmos, a new window on the very frontier of astrophysics.

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