Nothing
is standing or stationary. As you are reading this, the Earth spins around its
own axis; it revolves around the sun, the sun is moving through space at a
stunning 792,000 km/h around the gigantic center, and our universe is moving at
a mind-boggling 2.1 million kilometers per hour.
You
may contemplate that as you are reading this, your body in a stationary
position. But, everything inside the universe travels, from our planet (Earth)
–which revolves on its axis at a speed of approximately 1700 km/h— to the solar
system and even the Milky Way Galaxy.

All
the planets in the solar system and their personal moons also travel through
space. Actually, in order to retain a stable orbit, it is essential for Earth
to move around 30 km/s. The innermost planets in our system, Mercury and Venus
travel faster while planet Mars and the external planets of our solar system
fly through space at a sluggish pace.
But
think superior and bigger. Even yet the Sun is at the heart of our solar
system, it is also traveling at an unbelievable speed through space. If we
consider even bigger, we will understand that even our gigantic Milky Way
galaxy is in motion, and all continuing things that make up the universe such
as stars, gas clouds, planets, black holes and even the mighty dark matter
travel within the universe.
Just
as Earth revolve around the Sun and our Sun revolves the galactic center –which
from our vantage point is situated around 2500 light-years away— in an elliptic
trajectory. It finishes a revolution every 225 million years roughly. This is
known as a Galactic year.
It
is predicted that since the Sun and Earth came into being, 20 galactic years
have passed, which means that we ended 20 successful revolutions orbiting the
galactic center. However, if we relate detailed human history to our movement
through the universe, we would understand we hardly moved in our galactic path.
In
comparison, light-travels at a mesmerizing speed of 1.09 BILLION km/h. Though,
not only do moons, planets, and in this particular case, our sun travels
through space, the galaxy also moves through space, pushed by the gravitation
of other enormous objects in the universe. As it turns out, our Galaxy is now
being thrown, by other huge galaxies and clusters in the surrounding area —
near a certain point in the universe.
But
wait a minute, related to WHAT is we actually calculating the movement through
the universe? Well, when arguing our speed around the Milky Way Galaxy,
researchers are capable to measure it relative to the HEART of the Milky Way
Galaxy. However, the Milky Way Galaxy isn’t motionless or stationary, and it
also moves through the universe. So is there anything to which its motion can
be compared?
For a long period time, astronomers and scientists were not able to answer any questions like this. We can compare our galaxy’s speed with other galaxies, but all the other galaxies travel through the universe just as the Milky Way Galaxy does. In order to answer this mystery, astronomers and scientists point towards the CBR (Cosmic Background Radiation) and the Big Bang.
As
stated by NASA, The Big Bang theory guesses
that the early universe was an extremely hot place and that as it grows; the
gas within it gets cooler. Therefore the universe should be packed with
radiation that is exactly the remnant heat left from the Big Bang, called the
“Cosmic Microwave Background,” or CMB. The Cosmic Microwave Background (CMB) radiation
was produced 13.7 billion years ago.
Theoretically
speaking, the CBR suggests experts with a frame of reference for the entire
universe, compared to which we can determine and calculate our motion. In order
to get knowledge of how fast we’re travelling through the universe, astronomers
need to take away the motion of planet Earth around the Sun and the Sun around
the center of the Milky Way from the movement measured compared to the Cosmic
Microwave Background (CBR).
This
means that the Milky Way Galaxy is travelling through space at an amazing speed
of 2.1 million km/h, in the direction of the constellations of Virgo and Leo;
exactly where the so-called Great Attractor is situated.
Comments
Post a Comment