What is the Size of The Universe? – Video

What is the Size of The Universe? – Video

The video titled “How Big is The Universe?” takes viewers on an incredible journey through the vastness of space, from our familiar Earth to the outer reaches of the observable universe. Beginning with our home planet, we zoom out to the Moon, our closest neighbor, and then journey through our solar system, marveling at the immense distances to Mars, Neptune, and beyond.

As we venture further into space, we encounter the Voyager 1 probe, the Oort Cloud, and even the neighboring star system Alpha Centauri. The video invites us to contemplate our place in the Milky Way, the Local Group, and the colossal Laniakea Supercluster, where our entire history is just a tiny speck.

Ultimately, we are faced with the limits of the observable universe, leaving us with the humbling realization that there may be countless wonders and galaxies beyond our reach. This video is not just a lesson in astronomy but a profound exploration of our place in the grand tapestry of the universe. Subscribe to Science Time to continue your cosmic journey and marvel at the vastness of space. #universe #sciencetime #space

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Video Transcript

Earth our home planet a tiny blue dot floating in   the immense Cosmic ocean here resides everyone you  ever knew every human who ever lived every story   that was ever told it’s where our journey begins  but as we zoom out beyond our atmosphere past the  

Moon Beyond The Familiar planet and the sun we  embark on an Epic Quest a quest to grasp the true   scale of our universe as we leave Earth’s embrace  the first marker on our Cosmic journey is the moon  

About 384,000 km away a distance so vast that if  you were to drive a car at a constant speed of   100 km per hour it would take you over 160 days to  reach it and from this lunar Vantage Point Earth  

Appears as a a fragile sphere of Blues and greens  cradled in the black void of space a sight that   puts our existence into a humbling perspective  this is Earth as seen from the Moon as we continue   our outward Journey the next Milestone is the  sun lying approximately one astronomical unit  

Away from Earth this unit equivalent to about 150  million kilm is the standard measuring stick for   distances in our solar system imagine this light  traveling at an astounding speed of 300,000 km/s   takes about 8 minutes and 20 seconds to Journey  from the Sun to Earth if you were to travel this  

Distance in a commercial jet flying at 900 km  hour it would take you about 19 years this immense   distance is a stark reminder of the vastness of  space even within our own solar system the Sun a   fiery Behemoth provides life- sustaining energy to  our planet from this incredible distance venturing  

Beyond our home planet and its solar companion  the sun we set our sites on Mars our enigmatic red   neighbor Mars at its closest approach to Earth  is about 54.6 million kilm away however this   distance can stretch up to 401 million km when  the two planets are on opposite sides of the sun  

To put that in perspective traveling to Mars at  the speed of a commercial jet would take upwards   of 50 years this vast expanse of space between  Earth and Mars has been a significant challenge   for space exploration The Rovers and probes we’ve  sent to the red planet embark on a journey that  

Is not just far but fraught with complexities due  to the constantly changing distances and orbital   Dynamics as we journey to the outermost reaches  of our solar system we encounter Neptune the   distant ice giant lying roughly 4.5 billion kilm  from Earth Neptune marks the edge of our solar  

Neighborhood sunlight racing across the vacuum  of space takes about 4 hours and 15 minutes to   reach Neptune from the Sun this staggering  distance showcases the enormity of our solar   system launched in 1977 the Voyager One space  probe represents Humanity’s insatiable curiosity  

And our desire to explore Beyond known bound  boundaries as of now Voyager 1 has traveled for   over four decades covering a staggering distance  of more than 22 billion kilometers from Earth it’s   the farthest human-made object from our planet  a silent Wanderer in the cosmic sea in 1990 at  

The suggestion of the renowned astronomer Carl San  Voyager 1 turned its camera back towards Earth for   one final photograph this resulted in the iconic  pale blue dot image and at a distance of about 6   billion kilm from Earth our planet appeared as  a tiny faint dot in the vastness of space Sean  

Poetically reflected on this image emphasizing  our responsibility to cherish and preserve our   only home a small Speck in the immense Universe At  the very fringes of our solar system lies the ort   Cloud a vast theoretical sphere of icy objects  this distant cloud is thought to extend up to a  

Staggering 100,000 astronomical units from the  Sun that’s about 1.9 light years a distance so   immense that it’s on the cusp of interstellar  space scientists determine the boundary of   interstellar space known as the heliopause  where the sun’s solar wind is stopped by the  

Interstellar medium this is where the influence of  our sun ceases and the vast realm of interstellar   space Begins the or Cloud represents the final  frontier of our solar system a boundary Zone   where the sun’s influence wanes and the cosmic  journey into the Galaxy truly begins as we venture  

Beyond the confines of our solar system our next  point of interest is Alpha centor the closest star   system to our sun located about 41.3 trillion km  away this distance is equivalent to over 276,000   astronomical units at such colossal distances the  AU a measure so convenient within our solar system  

Begins to lose its practicality hence astronomers  use the Lightyear the distance light travels in   one year for Interstellar measurements Alpa  centu is about 4.4 light years away from us   considering our current space travel technology  a journey to Alpha centor is almost unfathomable  

For instance the Voyager spacecraft traveling at  about 17 km/ second would take over 70,000 years   to reach this neighboring star system this  immense distance underscores the vastness of   space that separates the stars and highlights the  challenges of interstellar travel our journey now  

Takes us to the Grand scale of our home galaxy  The Milky Way spanning about 100,000 light years   in diameter this vast spiral galaxy is home to  hundreds of billions of stars each potentially   hosting their own planetary systems within this  immense structure there’s a a tiny sphere known  

As the human radio bubble extending about a 100  light years from Earth this bubble represents the   farthest extent of human influence in the cosmos  the reach of our radio and television broadcasts   into space beyond this bubble it’s as if Humanity  never existed any civilizations residing in the  

Vast majority of our galaxy would be oblivious  to our presence given that our signals haven’t   reached them yet the scale of the Milky Way is  so vast that our entire recorded history is but   a whisper in the Cosmic Wind undetectable Beyond  this small bubble as we leave the Milky Way we  

Enter the vast almost incomprehensible realm of  Intergalactic space here galaxies float in the   cosmic ocean separated by mindboggling distances  our galaxy is part of a small Cosmic neighborhood   known as the local group a cluster of more than  50 galaxies spread across approximately 10 million  

Light years the local group is a diverse assembly  including not just spiral galaxies like the Milky   Way and Andromeda but also a multitude of smaller  dwarf galaxies the distances here are so vast that   light from one end of the local group to the other  would take 10 million years to Traverse this scale  

Dwarfs anything within our own Galaxy underscoring  the enormity of the universe Intergalactic space   is a silent expanse a vast Wilderness between the  islands of Galactic light in this immense void   our galaxy home to our entire history is just  a tiny Speck among many a single story in the  

Grand Cosmic Library as we extend our Cosmic gaze  beyond the local group we encounter the Colossal   Virgo supercluster an immense collection of Galaxy  groups and clusters including our own local group   encompassing a region of space about 110 million  light years in diameter or 33 megap parex the  

Virgo super cluster is a Titanic structure in the  universe containing thousands of galaxies from at   least 100 Galaxy groups and clusters each with  their own Myriad stars and planets as we journey   outward from the Virgo supercluster we arrive  at an even more staggering Cosmic structure  

The lanaka supercluster this immense Congregation  of galaxies which includes the Vergo supercluster   and extends over 500 million light years is our  Galactic home on a grand scale lakia meaning   immense Heaven in Hawaiian truly lives up to  its name containing the mass of 100 million  

Billion Suns lakia is a gravitational Masterpiece  with Galaxy clusters superclusters and countless   celestial bodies Bound in a cosmic web of  Attraction and motion at the heart of lanaka   Lies the great attractor a mysterious region  of space that exerts a massive gravitational  

Pull on the galaxies within this super cluster  in this vast expanse our Milky Way the entire   local group and even the Virgo supercluster are  just tiny components of this gigantic structure   lanak Kia provides a profound context for our  existence in this immense supercluster we are  

Part of something far greater and more Majestic  than we can fully comprehend as we reach the   boundaries of our Cosmic exploration we encounter  the limits of the observable universe an Aston   astronomical Marvel stretching about 93 billion  light years in diameter this begs a fascinating  

Question if the universe is only 13.8 billion  years old how can it be so vast the answer lies   in the nature of cosmic expansion the universe has  been expanding since the Big Bang stretching space   and increasing distances between celestial bodies  but what lies beyond the observable universe this  

Remains one of the greatest mysteries of cosm  ology some regions of space are expanding away   from us faster than the speed of light placing  them forever out of our view consequently the   true size of the entire universe remains unknown  and potentially infinite the observable universe  

Vast as it is might just be a tiny fragment  of the entire Cosmic expanse we are left   with the humbling realization that there might  always be regions of space entire galaxies and   wonders that we will never witness as they Retreat  endlessly into the depths of the ever expanding universe

Video “How Big is The Universe?” was uploaded on 02/03/2024 to Youtube Channel Science Time