Hubble Var1

Consider the pursuit and acquisition of knowledge.

Ninety-four years ago today, the modern universe “appeared”

When my father was born in 1916, the world still maintained a Copernican understanding of our galaxy. In essence, the conventional wisdom was that the universe was made up of just one galaxy – our own Milky Way galaxy.

By 1923, [virtually overnight, our entire perception of the universe changed]. The discovery of a single star heralded our modern understanding of the universe!

On October 5, 1923, Edwin Hubble discovered a Cepheid variable star in what was then known as the Andromeda Nebula.

Hubble Var1
[Var! – Edwin Hubble | Source Carnegie Observatories ]

So by the time my mother was born in 1925, the Universe went from a single [Milky Way] Galaxy, to literally hundred of Millions…

Hubble determined that this object was 1 million light-years away, more than three times the then-calculated Milky Way diameter. (Better measurements today put Andromeda at more than 2 million light-years away.)

Hubble Deep Field

Hubble Deep Field
[Source: 2004 NASA Hubble Deep Field ]

Links

SaveSave

SaveSave

SaveSave

About The Author

Close