theoldwolf: (Physics)
A throbbing red giant star called chi Cygni, 550 light years away in the constellation Cygnus, has been imaged in unprecedented detail, giving a clear insight into the fate that awaits our own Sun in five billion years time. Full Article

A stunning animation created from still images taken over time show the expansion and contraction of the red giant as it runs out of fuel.
theoldwolf: (Default)
Just the other day I was wishing for something like this as I mentioned Powers of Ten. This is a fascinating video.



One little tidbit I thought of particular interest was the little 70-light year diameter sphere that shows the extent of man's radio transmissions. Even if anyone out there is listening, our "hello" has barely left the transmitter...

The universe is so honking big...

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