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Showing posts with label home galaxy. Show all posts
Showing posts with label home galaxy. Show all posts

Saturday, March 30, 2013

Young, hot and blue


The universe is very old - well 13.8 billion years. Our home galaxy, the Milky Way, is also very old - some of their stars bring it to more than 13 billion years (eso0425).

Nevertheless, there is much going on: New objects are created, others are destroyed. In this picture you can see some of the newcomers: young stars that make up the star cluster NGC 2547.

But how young these cosmic youngsters really are? Although her exact age remains uncertain,