Our solar system is very big.
Voyager has taken some thirty five years to reach the edge of it, travelling at 10.5 mi/s.
It’s now between solar systems, and will take 10000 years to reach the next one.
In our galaxy there 200 billion solar systems. But ours is just one galaxy in a much larger universe.
In the whole Universe there are the hundred billion galaxies.
It’s Carl Sagan’s birthday.
If you’ve not watched Cosmos, I urge you to. He’s like an infinitely better Brian Cox, and with a deeply philosophical understanding, and and eloquent and compelling wisdom.
9 Comments
Stephen Jones liked this on Facebook.
I absolutely love this. I welcome reminders every day (and night) of this kind of awe, not least by simply seeing the stars and soaking them in. Click on this link to see the planets moving! https://lh6.googleusercontent.com/-bLNKXKh0EO4/UniQqEgbZ5I/AAAAAAAAb-A/ITETrvMelxs/w375-h211-no/DSC10.gif
Lucy Hinton liked this on Facebook.
Jonathan Coates liked this on Facebook.
Sophie Carver liked this on Facebook.
Agamemnon Otero liked this on Facebook.
Eciomones are in dire straits, but I can count on this!
That’s a clever answer to a tricky question
Just cause it’s simple doesn’t mean it’s not super helpful.