There is a giant black hole at the centre of our galaxy, a study has confirmed.
German astronomers tracked the movement of 28 stars circling the centre of the Milky Way, using the European Southern Observatory in Chile.
The black hole is four million times heavier than our Sun, according to the paper in The Astrophysical Journal.
BBC NEWS | Science & Environment | Black hole found in Milky Way.
Thanks, Mr. Ellis. That really made my night.
The Boston Globe’s Big Picture has a great set of pics up: Green Sahara.
The Sahara used to be lush and green, with … fantastical monsters roaming around:
And the peoples who lived here obviously had a great deal of ceremony around the burying of their dead:
I find it compelling and fascinating to imagine whole entire parts of the globe with completely different environments than we have now – imagine a lush, green Sahara with crocodile headed monsters running around (110 million years ago) … people putting flowers into graves, weeping over the loss of their loved ones (6 thousand years ago)…. it really does boggle the mind, doesn’t it?
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