Placeholder Image

Subtitles section Play video

  • Let us travel now at the speed of light,

  • departing from our home star on a trip across the cosmos to the edge of the known Universe

  • Our imaginary journey begins at midnight on January 1st when we prepare to launch into space

  • at the speed of 186,000 miles/sec

  • We quickly pass the orbit of Mercury

  • Venus

  • And span the 93 million miles that separate the Earth from the Sun in just 8 minutes 19 seconds.

  • We continue on, passing Mars

  • Then the gas giant planet Jupiter

  • Saturn ...

  • Uranus ...

  • Neptune ...

  • Finally after 5 hours and 31 minutes, we race pass Pluto and its companion moon ...

  • Our journey has taken us more than 3.5 billion miles

  • to the outer limit of our Solar System and it's still January 1st

  • Now we alter our flight path and travel in the direction perpendicular to our galaxy

  • Behind us, the 9 planets and the Sun quickly vanished from sight

  • The emptiness of space is broken only by the light of stars so distant, they do not yet appear to move

  • A year passes

  • then two years

  • Three

  • Four years

  • Finally on April 19th of the 5th year, we reach Alpha Centauri, the nearest star to our Solar System

  • We have travelled more than 25 trillion miles and our journey has scarcely begun

  • We are now 10 light years from the Sun, far enough out in space that the stars within our galaxy appear to converge.

  • 100 light years from the Sun,

  • patterns of gas and nebular's material from the arm of the Milky Way fill our view

  • 1000 light years

  • The galaxy's arms and disks become more defined

  • Yet it is not ultil we have travelled at the speed of light for 100,000 years that the entire spiral shape of the Milky Way is recognizable

  • From here on, each point of light we see is no longer an individual star but an entire galaxy composed of billions of stars

  • 5 million years after beginning our journey,

  • the Milky Way is seen as part of a cluster of about 30 galaxies known as the Local Group

  • 50 million light years out, we encounter the large Virgo cluster containing more than 2000 galaxies

  • and so it goes as our travel continue to take us deeper into the cosmos

  • We pass cluster after galactic cluster, each's a building block of a far greater framework

  • A billion years passed

  • 5 billion

  • Finally after 10 billion years we decelerate and pause

  • to observe the theoretical view of the Universe in large scale structure

  • Countless billions of galaxies are now seen the comprised chains

  • masses and thread lights structures that stretch across the cosmos

  • Separated by enormous regions of empty space

  • It is a spectacular tapestry

  • So vast and divers in its design that the power of its creator must truly surpasses all human understanding

Let us travel now at the speed of light,

Subtitles and vocabulary

Click the word to look it up Click the word to find further inforamtion about it

B1 cluster journey galaxy milky cosmos sun

Journey to the edge of the Universe (English caption)

  • 42 7
    Henry posted on 2013/08/23
Video vocabulary